171980460

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{13457}}^1$

素因数の和:13543

約数の個数: 72

約数和(自身を含む): 529060896

約数和(自身を除く): 357080436

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 71, 90, 142, 180, 213, 284, 355, 426, 639, 710, 852, 1065, 1278, 1420, 2130, 2556, 3195, 4260, 6390, 12780, 13457, 26914, 40371, 53828, 67285, 80742, 121113, 134570, 161484, 201855, 242226, 269140, 403710, 484452, 605565, 807420, 955447, 1211130, 1910894, 2422260, 2866341, 3821788, 4777235, 5732682, 8599023, 9554470, 11465364, 14331705, 17198046, 19108940, 28663410, 34396092, 42995115, 57326820, 85990230, 171980460]

約数ペア:

[(1, 171980460), (2, 85990230), (3, 57326820), (4, 42995115), (5, 34396092), (6, 28663410), (9, 19108940), (10, 17198046), (12, 14331705), (15, 11465364), (18, 9554470), (20, 8599023), (30, 5732682), (36, 4777235), (45, 3821788), (60, 2866341), (71, 2422260), (90, 1910894), (142, 1211130), (180, 955447), (213, 807420), (284, 605565), (355, 484452), (426, 403710), (639, 269140), (710, 242226), (852, 201855), (1065, 161484), (1278, 134570), (1420, 121113), (2130, 80742), (2556, 67285), (3195, 53828), (4260, 40371), (6390, 26914), (12780, 13457)]