18756780

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1$

素因数の和:144

約数の個数: 192

約数和(自身を含む): 66189312

約数和(自身を除く): 47432532

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 17, 20, 21, 28, 30, 34, 35, 37, 42, 51, 60, 68, 70, 71, 74, 84, 85, 102, 105, 111, 119, 140, 142, 148, 170, 185, 204, 210, 213, 222, 238, 255, 259, 284, 340, 355, 357, 370, 420, 426, 444, 476, 497, 510, 518, 555, 595, 629, 710, 714, 740, 777, 852, 994, 1020, 1036, 1065, 1110, 1190, 1207, 1258, 1295, 1420, 1428, 1491, 1554, 1785, 1887, 1988, 2130, 2220, 2380, 2414, 2485, 2516, 2590, 2627, 2982, 3108, 3145, 3570, 3621, 3774, 3885, 4260, 4403, 4828, 4970, 5180, 5254, 5964, 6035, 6290, 7140, 7242, 7455, 7548, 7770, 7881, 8449, 8806, 9435, 9940, 10508, 12070, 12580, 13135, 13209, 14484, 14910, 15540, 15762, 16898, 17612, 18105, 18389, 18870, 22015, 24140, 25347, 26270, 26418, 29820, 31524, 33796, 36210, 36778, 37740, 39405, 42245, 44030, 44659, 50694, 52540, 52836, 55167, 66045, 72420, 73556, 78810, 84490, 88060, 89318, 91945, 101388, 110334, 126735, 132090, 133977, 157620, 168980, 178636, 183890, 220668, 223295, 253470, 264180, 267954, 275835, 312613, 367780, 446590, 506940, 535908, 551670, 625226, 669885, 893180, 937839, 1103340, 1250452, 1339770, 1563065, 1875678, 2679540, 3126130, 3751356, 4689195, 6252260, 9378390, 18756780]

約数ペア:

[(1, 18756780), (2, 9378390), (3, 6252260), (4, 4689195), (5, 3751356), (6, 3126130), (7, 2679540), (10, 1875678), (12, 1563065), (14, 1339770), (15, 1250452), (17, 1103340), (20, 937839), (21, 893180), (28, 669885), (30, 625226), (34, 551670), (35, 535908), (37, 506940), (42, 446590), (51, 367780), (60, 312613), (68, 275835), (70, 267954), (71, 264180), (74, 253470), (84, 223295), (85, 220668), (102, 183890), (105, 178636), (111, 168980), (119, 157620), (140, 133977), (142, 132090), (148, 126735), (170, 110334), (185, 101388), (204, 91945), (210, 89318), (213, 88060), (222, 84490), (238, 78810), (255, 73556), (259, 72420), (284, 66045), (340, 55167), (355, 52836), (357, 52540), (370, 50694), (420, 44659), (426, 44030), (444, 42245), (476, 39405), (497, 37740), (510, 36778), (518, 36210), (555, 33796), (595, 31524), (629, 29820), (710, 26418), (714, 26270), (740, 25347), (777, 24140), (852, 22015), (994, 18870), (1020, 18389), (1036, 18105), (1065, 17612), (1110, 16898), (1190, 15762), (1207, 15540), (1258, 14910), (1295, 14484), (1420, 13209), (1428, 13135), (1491, 12580), (1554, 12070), (1785, 10508), (1887, 9940), (1988, 9435), (2130, 8806), (2220, 8449), (2380, 7881), (2414, 7770), (2485, 7548), (2516, 7455), (2590, 7242), (2627, 7140), (2982, 6290), (3108, 6035), (3145, 5964), (3570, 5254), (3621, 5180), (3774, 4970), (3885, 4828), (4260, 4403)]