81831880

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{9257}}^1$

素因数の和:9298

約数の個数: 64

約数和(自身を含む): 209971440

約数和(自身を除く): 128139560

約数列:

[1, 2, 4, 5, 8, 10, 13, 17, 20, 26, 34, 40, 52, 65, 68, 85, 104, 130, 136, 170, 221, 260, 340, 442, 520, 680, 884, 1105, 1768, 2210, 4420, 8840, 9257, 18514, 37028, 46285, 74056, 92570, 120341, 157369, 185140, 240682, 314738, 370280, 481364, 601705, 629476, 786845, 962728, 1203410, 1258952, 1573690, 2045797, 2406820, 3147380, 4091594, 4813640, 6294760, 8183188, 10228985, 16366376, 20457970, 40915940, 81831880]

約数ペア:

[(1, 81831880), (2, 40915940), (4, 20457970), (5, 16366376), (8, 10228985), (10, 8183188), (13, 6294760), (17, 4813640), (20, 4091594), (26, 3147380), (34, 2406820), (40, 2045797), (52, 1573690), (65, 1258952), (68, 1203410), (85, 962728), (104, 786845), (130, 629476), (136, 601705), (170, 481364), (221, 370280), (260, 314738), (340, 240682), (442, 185140), (520, 157369), (680, 120341), (884, 92570), (1105, 74056), (1768, 46285), (2210, 37028), (4420, 18514), (8840, 9257)]