20782410

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{887}}^1$

素因数の和:979

約数の個数: 64

約数和(自身を含む): 55240704

約数和(自身を除く): 34458294

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, 887, 1065, 1562, 1774, 2130, 2343, 2661, 3905, 4435, 4686, 5322, 7810, 8870, 9757, 11715, 13305, 19514, 23430, 26610, 29271, 48785, 58542, 62977, 97570, 125954, 146355, 188931, 292710, 314885, 377862, 629770, 692747, 944655, 1385494, 1889310, 2078241, 3463735, 4156482, 6927470, 10391205, 20782410]

約数ペア:

[(1, 20782410), (2, 10391205), (3, 6927470), (5, 4156482), (6, 3463735), (10, 2078241), (11, 1889310), (15, 1385494), (22, 944655), (30, 692747), (33, 629770), (55, 377862), (66, 314885), (71, 292710), (110, 188931), (142, 146355), (165, 125954), (213, 97570), (330, 62977), (355, 58542), (426, 48785), (710, 29271), (781, 26610), (887, 23430), (1065, 19514), (1562, 13305), (1774, 11715), (2130, 9757), (2343, 8870), (2661, 7810), (3905, 5322), (4435, 4686)]