81917220

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{149}}^1$

素因数の和:203

約数の個数: 288

約数和(自身を含む): 310262400

約数和(自身を除く): 228345180

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, 49, 51, 55, 60, 66, 68, 70, 77, 84, 85, 98, 102, 105, 110, 119, 132, 140, 147, 149, 154, 165, 170, 187, 196, 204, 210, 220, 231, 238, 245, 255, 294, 298, 308, 330, 340, 357, 374, 385, 420, 447, 462, 476, 490, 510, 539, 561, 588, 595, 596, 660, 714, 735, 745, 748, 770, 833, 894, 924, 935, 980, 1020, 1043, 1078, 1122, 1155, 1190, 1309, 1428, 1470, 1490, 1540, 1617, 1639, 1666, 1785, 1788, 1870, 2086, 2156, 2235, 2244, 2310, 2380, 2499, 2533, 2618, 2695, 2805, 2940, 2980, 3129, 3234, 3278, 3332, 3570, 3740, 3927, 4165, 4172, 4470, 4620, 4917, 4998, 5066, 5215, 5236, 5390, 5610, 6258, 6468, 6545, 6556, 7140, 7301, 7599, 7854, 8085, 8195, 8330, 8940, 9163, 9834, 9996, 10132, 10430, 10780, 11220, 11473, 12495, 12516, 12665, 13090, 14602, 15198, 15645, 15708, 16170, 16390, 16660, 17731, 18326, 19635, 19668, 20860, 21903, 22946, 24585, 24990, 25330, 26180, 27489, 27863, 29204, 30396, 31290, 32340, 32780, 34419, 35462, 36505, 36652, 37995, 39270, 43806, 45815, 45892, 49170, 49980, 50660, 53193, 54978, 55726, 57365, 62580, 68838, 70924, 73010, 75990, 78540, 80311, 83589, 87612, 88655, 91630, 98340, 106386, 109515, 109956, 111452, 114730, 124117, 137445, 137676, 139315, 146020, 151980, 160622, 167178, 172095, 177310, 183260, 195041, 212772, 219030, 229460, 240933, 248234, 265965, 274890, 278630, 321244, 334356, 344190, 354620, 372351, 390082, 401555, 417945, 438060, 481866, 496468, 531930, 549780, 557260, 585123, 620585, 688380, 744702, 780164, 803110, 835890, 963732, 975205, 1063860, 1170246, 1204665, 1241170, 1365287, 1489404, 1606220, 1671780, 1861755, 1950410, 2340492, 2409330, 2482340, 2730574, 2925615, 3723510, 3900820, 4095861, 4818660, 5461148, 5851230, 6826435, 7447020, 8191722, 11702460, 13652870, 16383444, 20479305, 27305740, 40958610, 81917220]

約数ペア:

[(1, 81917220), (2, 40958610), (3, 27305740), (4, 20479305), (5, 16383444), (6, 13652870), (7, 11702460), (10, 8191722), (11, 7447020), (12, 6826435), (14, 5851230), (15, 5461148), (17, 4818660), (20, 4095861), (21, 3900820), (22, 3723510), (28, 2925615), (30, 2730574), (33, 2482340), (34, 2409330), (35, 2340492), (42, 1950410), (44, 1861755), (49, 1671780), (51, 1606220), (55, 1489404), (60, 1365287), (66, 1241170), (68, 1204665), (70, 1170246), (77, 1063860), (84, 975205), (85, 963732), (98, 835890), (102, 803110), (105, 780164), (110, 744702), (119, 688380), (132, 620585), (140, 585123), (147, 557260), (149, 549780), (154, 531930), (165, 496468), (170, 481866), (187, 438060), (196, 417945), (204, 401555), (210, 390082), (220, 372351), (231, 354620), (238, 344190), (245, 334356), (255, 321244), (294, 278630), (298, 274890), (308, 265965), (330, 248234), (340, 240933), (357, 229460), (374, 219030), (385, 212772), (420, 195041), (447, 183260), (462, 177310), (476, 172095), (490, 167178), (510, 160622), (539, 151980), (561, 146020), (588, 139315), (595, 137676), (596, 137445), (660, 124117), (714, 114730), (735, 111452), (745, 109956), (748, 109515), (770, 106386), (833, 98340), (894, 91630), (924, 88655), (935, 87612), (980, 83589), (1020, 80311), (1043, 78540), (1078, 75990), (1122, 73010), (1155, 70924), (1190, 68838), (1309, 62580), (1428, 57365), (1470, 55726), (1490, 54978), (1540, 53193), (1617, 50660), (1639, 49980), (1666, 49170), (1785, 45892), (1788, 45815), (1870, 43806), (2086, 39270), (2156, 37995), (2235, 36652), (2244, 36505), (2310, 35462), (2380, 34419), (2499, 32780), (2533, 32340), (2618, 31290), (2695, 30396), (2805, 29204), (2940, 27863), (2980, 27489), (3129, 26180), (3234, 25330), (3278, 24990), (3332, 24585), (3570, 22946), (3740, 21903), (3927, 20860), (4165, 19668), (4172, 19635), (4470, 18326), (4620, 17731), (4917, 16660), (4998, 16390), (5066, 16170), (5215, 15708), (5236, 15645), (5390, 15198), (5610, 14602), (6258, 13090), (6468, 12665), (6545, 12516), (6556, 12495), (7140, 11473), (7301, 11220), (7599, 10780), (7854, 10430), (8085, 10132), (8195, 9996), (8330, 9834), (8940, 9163)]