1640328040

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{3154477}}^1$

素因数の和:3154501

約数の個数: 32

約数和(自身を含む): 3974642280

約数和(自身を除く): 2334314240

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 3154477, 6308954, 12617908, 15772385, 25235816, 31544770, 41008201, 63089540, 82016402, 126179080, 164032804, 205041005, 328065608, 410082010, 820164020, 1640328040]

約数ペア:

[(1, 1640328040), (2, 820164020), (4, 410082010), (5, 328065608), (8, 205041005), (10, 164032804), (13, 126179080), (20, 82016402), (26, 63089540), (40, 41008201), (52, 31544770), (65, 25235816), (104, 15772385), (130, 12617908), (260, 6308954), (520, 3154477)]