7888925980

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{572491}}^1$

素因数の和:572566

約数の個数: 48

約数和(自身を含む): 18177765984

約数和(自身を除く): 10288840004

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 53, 65, 106, 130, 212, 260, 265, 530, 689, 1060, 1378, 2756, 3445, 6890, 13780, 572491, 1144982, 2289964, 2862455, 5724910, 7442383, 11449820, 14884766, 29769532, 30342023, 37211915, 60684046, 74423830, 121368092, 148847660, 151710115, 303420230, 394446299, 606840460, 788892598, 1577785196, 1972231495, 3944462990, 7888925980]

約数ペア:

[(1, 7888925980), (2, 3944462990), (4, 1972231495), (5, 1577785196), (10, 788892598), (13, 606840460), (20, 394446299), (26, 303420230), (52, 151710115), (53, 148847660), (65, 121368092), (106, 74423830), (130, 60684046), (212, 37211915), (260, 30342023), (265, 29769532), (530, 14884766), (689, 11449820), (1060, 7442383), (1378, 5724910), (2756, 2862455), (3445, 2289964), (6890, 1144982), (13780, 572491)]