81231810

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{3467}}^1$

素因数の和:3559

約数の個数: 64

約数和(自身を含む): 215737344

約数和(自身を除く): 134505534

約数列:

[1, 2, 3, 5, 6, 10, 11, 15, 22, 30, 33, 55, 66, 71, 110, 142, 165, 213, 330, 355, 426, 710, 781, 1065, 1562, 2130, 2343, 3467, 3905, 4686, 6934, 7810, 10401, 11715, 17335, 20802, 23430, 34670, 38137, 52005, 76274, 104010, 114411, 190685, 228822, 246157, 381370, 492314, 572055, 738471, 1144110, 1230785, 1476942, 2461570, 2707727, 3692355, 5415454, 7384710, 8123181, 13538635, 16246362, 27077270, 40615905, 81231810]

約数ペア:

[(1, 81231810), (2, 40615905), (3, 27077270), (5, 16246362), (6, 13538635), (10, 8123181), (11, 7384710), (15, 5415454), (22, 3692355), (30, 2707727), (33, 2461570), (55, 1476942), (66, 1230785), (71, 1144110), (110, 738471), (142, 572055), (165, 492314), (213, 381370), (330, 246157), (355, 228822), (426, 190685), (710, 114411), (781, 104010), (1065, 76274), (1562, 52005), (2130, 38137), (2343, 34670), (3467, 23430), (3905, 20802), (4686, 17335), (6934, 11715), (7810, 10401)]