674440

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1297}}^1$

素因数の和:1321

約数の個数: 32

約数和(自身を含む): 1635480

約数和(自身を除く): 961040

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 1297, 2594, 5188, 6485, 10376, 12970, 16861, 25940, 33722, 51880, 67444, 84305, 134888, 168610, 337220, 674440]

約数ペア:

[(1, 674440), (2, 337220), (4, 168610), (5, 134888), (8, 84305), (10, 67444), (13, 51880), (20, 33722), (26, 25940), (40, 16861), (52, 12970), (65, 10376), (104, 6485), (130, 5188), (260, 2594), (520, 1297)]