640009864

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{59747}}^1$

素因数の和:59869

約数の個数: 32

約数和(自身を含む): 1304896320

約数和(自身を除く): 664886456

約数列:

[1, 2, 4, 8, 13, 26, 52, 103, 104, 206, 412, 824, 1339, 2678, 5356, 10712, 59747, 119494, 238988, 477976, 776711, 1553422, 3106844, 6153941, 6213688, 12307882, 24615764, 49231528, 80001233, 160002466, 320004932, 640009864]

約数ペア:

[(1, 640009864), (2, 320004932), (4, 160002466), (8, 80001233), (13, 49231528), (26, 24615764), (52, 12307882), (103, 6213688), (104, 6153941), (206, 3106844), (412, 1553422), (824, 776711), (1339, 477976), (2678, 238988), (5356, 119494), (10712, 59747)]