920804560

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{885389}}^1$

素因数の和:885415

約数の個数: 40

約数和(自身を含む): 2305555560

約数和(自身を除く): 1384751000

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 885389, 1770778, 3541556, 4426945, 7083112, 8853890, 11510057, 14166224, 17707780, 23020114, 35415560, 46040228, 57550285, 70831120, 92080456, 115100570, 184160912, 230201140, 460402280, 920804560]

約数ペア:

[(1, 920804560), (2, 460402280), (4, 230201140), (5, 184160912), (8, 115100570), (10, 92080456), (13, 70831120), (16, 57550285), (20, 46040228), (26, 35415560), (40, 23020114), (52, 17707780), (65, 14166224), (80, 11510057), (104, 8853890), (130, 7083112), (208, 4426945), (260, 3541556), (520, 1770778), (1040, 885389)]