328120

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{631}}^1$

素因数の和:655

約数の個数: 32

約数和(自身を含む): 796320

約数和(自身を除く): 468200

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 631, 1262, 2524, 3155, 5048, 6310, 8203, 12620, 16406, 25240, 32812, 41015, 65624, 82030, 164060, 328120]

約数ペア:

[(1, 328120), (2, 164060), (4, 82030), (5, 65624), (8, 41015), (10, 32812), (13, 25240), (20, 16406), (26, 12620), (40, 8203), (52, 6310), (65, 5048), (104, 3155), (130, 2524), (260, 1262), (520, 631)]