7928780

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{67}}^1\times {\mathrm{97}}^1$

素因数の和:234

約数の個数: 48

約数和(自身を含む): 17353056

約数和(自身を除く): 9424276

約数列:

[1, 2, 4, 5, 10, 20, 61, 67, 97, 122, 134, 194, 244, 268, 305, 335, 388, 485, 610, 670, 970, 1220, 1340, 1940, 4087, 5917, 6499, 8174, 11834, 12998, 16348, 20435, 23668, 25996, 29585, 32495, 40870, 59170, 64990, 81740, 118340, 129980, 396439, 792878, 1585756, 1982195, 3964390, 7928780]

約数ペア:

[(1, 7928780), (2, 3964390), (4, 1982195), (5, 1585756), (10, 792878), (20, 396439), (61, 129980), (67, 118340), (97, 81740), (122, 64990), (134, 59170), (194, 40870), (244, 32495), (268, 29585), (305, 25996), (335, 23668), (388, 20435), (485, 16348), (610, 12998), (670, 11834), (970, 8174), (1220, 6499), (1340, 5917), (1940, 4087)]