261920360

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{29629}}^1$

素因数の和:29670

約数の個数: 64

約数和(自身を含む): 672008400

約数和(自身を除く): 410088040

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, 29629, 59258, 118516, 148145, 237032, 296290, 385177, 503693, 592580, 770354, 1007386, 1185160, 1540708, 1925885, 2014772, 2518465, 3081416, 3851770, 4029544, 5036930, 6548009, 7703540, 10073860, 13096018, 15407080, 20147720, 26192036, 32740045, 52384072, 65480090, 130960180, 261920360]

約数ペア:

[(1, 261920360), (2, 130960180), (4, 65480090), (5, 52384072), (8, 32740045), (10, 26192036), (13, 20147720), (17, 15407080), (20, 13096018), (26, 10073860), (34, 7703540), (40, 6548009), (52, 5036930), (65, 4029544), (68, 3851770), (85, 3081416), (104, 2518465), (130, 2014772), (136, 1925885), (170, 1540708), (221, 1185160), (260, 1007386), (340, 770354), (442, 592580), (520, 503693), (680, 385177), (884, 296290), (1105, 237032), (1768, 148145), (2210, 118516), (4420, 59258), (8840, 29629)]