51521340

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{5081}}^1$

素因数の和:5119

約数の個数: 72

約数和(自身を含む): 156241008

約数和(自身を除く): 104719668

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 169, 195, 260, 338, 390, 507, 676, 780, 845, 1014, 1690, 2028, 2535, 3380, 5070, 5081, 10140, 10162, 15243, 20324, 25405, 30486, 50810, 60972, 66053, 76215, 101620, 132106, 152430, 198159, 264212, 304860, 330265, 396318, 660530, 792636, 858689, 990795, 1321060, 1717378, 1981590, 2576067, 3434756, 3963180, 4293445, 5152134, 8586890, 10304268, 12880335, 17173780, 25760670, 51521340]

約数ペア:

[(1, 51521340), (2, 25760670), (3, 17173780), (4, 12880335), (5, 10304268), (6, 8586890), (10, 5152134), (12, 4293445), (13, 3963180), (15, 3434756), (20, 2576067), (26, 1981590), (30, 1717378), (39, 1321060), (52, 990795), (60, 858689), (65, 792636), (78, 660530), (130, 396318), (156, 330265), (169, 304860), (195, 264212), (260, 198159), (338, 152430), (390, 132106), (507, 101620), (676, 76215), (780, 66053), (845, 60972), (1014, 50810), (1690, 30486), (2028, 25405), (2535, 20324), (3380, 15243), (5070, 10162), (5081, 10140)]