161556780

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{11}}^3\times {\mathrm{17}}^2$

素因数の和:86

約数の個数: 288

約数和(自身を含む): 604058112

約数和(自身を除く): 442501332

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 11, 12, 14, 15, 17, 20, 21, 22, 28, 30, 33, 34, 35, 42, 44, 51, 55, 60, 66, 68, 70, 77, 84, 85, 102, 105, 110, 119, 121, 132, 140, 154, 165, 170, 187, 204, 210, 220, 231, 238, 242, 255, 289, 308, 330, 340, 357, 363, 374, 385, 420, 462, 476, 484, 510, 561, 578, 595, 605, 660, 714, 726, 748, 770, 847, 867, 924, 935, 1020, 1122, 1155, 1156, 1190, 1210, 1309, 1331, 1428, 1445, 1452, 1540, 1694, 1734, 1785, 1815, 1870, 2023, 2057, 2244, 2310, 2380, 2420, 2541, 2618, 2662, 2805, 2890, 3179, 3388, 3468, 3570, 3630, 3740, 3927, 3993, 4046, 4114, 4235, 4335, 4620, 5082, 5236, 5324, 5610, 5780, 6069, 6171, 6358, 6545, 6655, 7140, 7260, 7854, 7986, 8092, 8228, 8470, 8670, 9317, 9537, 10115, 10164, 10285, 11220, 12138, 12342, 12705, 12716, 13090, 13310, 14399, 15708, 15895, 15972, 16940, 17340, 18634, 19074, 19635, 19965, 20230, 20570, 22253, 22627, 24276, 24684, 25410, 26180, 26620, 27951, 28798, 30345, 30855, 31790, 34969, 37268, 38148, 39270, 39930, 40460, 41140, 43197, 44506, 45254, 46585, 47685, 50820, 55902, 57596, 60690, 61710, 63580, 66759, 67881, 69938, 71995, 78540, 79860, 86394, 89012, 90508, 93170, 95370, 104907, 111265, 111804, 113135, 121380, 123420, 133518, 135762, 139755, 139876, 143990, 158389, 172788, 174845, 186340, 190740, 209814, 215985, 222530, 226270, 244783, 267036, 271524, 279510, 287980, 316778, 333795, 339405, 349690, 384659, 419628, 431970, 445060, 452540, 475167, 489566, 524535, 559020, 633556, 667590, 678810, 699380, 734349, 769318, 791945, 863940, 950334, 979132, 1049070, 1153977, 1223915, 1335180, 1357620, 1468698, 1538636, 1583890, 1900668, 1923295, 2098140, 2307954, 2375835, 2447830, 2692613, 2937396, 3167780, 3671745, 3846590, 4615908, 4751670, 4895660, 5385226, 5769885, 7343490, 7693180, 8077839, 9503340, 10770452, 11539770, 13463065, 14686980, 16155678, 23079540, 26926130, 32311356, 40389195, 53852260, 80778390, 161556780]

約数ペア:

[(1, 161556780), (2, 80778390), (3, 53852260), (4, 40389195), (5, 32311356), (6, 26926130), (7, 23079540), (10, 16155678), (11, 14686980), (12, 13463065), (14, 11539770), (15, 10770452), (17, 9503340), (20, 8077839), (21, 7693180), (22, 7343490), (28, 5769885), (30, 5385226), (33, 4895660), (34, 4751670), (35, 4615908), (42, 3846590), (44, 3671745), (51, 3167780), (55, 2937396), (60, 2692613), (66, 2447830), (68, 2375835), (70, 2307954), (77, 2098140), (84, 1923295), (85, 1900668), (102, 1583890), (105, 1538636), (110, 1468698), (119, 1357620), (121, 1335180), (132, 1223915), (140, 1153977), (154, 1049070), (165, 979132), (170, 950334), (187, 863940), (204, 791945), (210, 769318), (220, 734349), (231, 699380), (238, 678810), (242, 667590), (255, 633556), (289, 559020), (308, 524535), (330, 489566), (340, 475167), (357, 452540), (363, 445060), (374, 431970), (385, 419628), (420, 384659), (462, 349690), (476, 339405), (484, 333795), (510, 316778), (561, 287980), (578, 279510), (595, 271524), (605, 267036), (660, 244783), (714, 226270), (726, 222530), (748, 215985), (770, 209814), (847, 190740), (867, 186340), (924, 174845), (935, 172788), (1020, 158389), (1122, 143990), (1155, 139876), (1156, 139755), (1190, 135762), (1210, 133518), (1309, 123420), (1331, 121380), (1428, 113135), (1445, 111804), (1452, 111265), (1540, 104907), (1694, 95370), (1734, 93170), (1785, 90508), (1815, 89012), (1870, 86394), (2023, 79860), (2057, 78540), (2244, 71995), (2310, 69938), (2380, 67881), (2420, 66759), (2541, 63580), (2618, 61710), (2662, 60690), (2805, 57596), (2890, 55902), (3179, 50820), (3388, 47685), (3468, 46585), (3570, 45254), (3630, 44506), (3740, 43197), (3927, 41140), (3993, 40460), (4046, 39930), (4114, 39270), (4235, 38148), (4335, 37268), (4620, 34969), (5082, 31790), (5236, 30855), (5324, 30345), (5610, 28798), (5780, 27951), (6069, 26620), (6171, 26180), (6358, 25410), (6545, 24684), (6655, 24276), (7140, 22627), (7260, 22253), (7854, 20570), (7986, 20230), (8092, 19965), (8228, 19635), (8470, 19074), (8670, 18634), (9317, 17340), (9537, 16940), (10115, 15972), (10164, 15895), (10285, 15708), (11220, 14399), (12138, 13310), (12342, 13090), (12705, 12716)]