20553780

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{2027}}^1$

素因数の和:2065

約数の個数: 72

約数和(自身を含む): 62348832

約数和(自身を除く): 41795052

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, 2027, 2028, 2535, 3380, 4054, 5070, 6081, 8108, 10135, 10140, 12162, 20270, 24324, 26351, 30405, 40540, 52702, 60810, 79053, 105404, 121620, 131755, 158106, 263510, 316212, 342563, 395265, 527020, 685126, 790530, 1027689, 1370252, 1581060, 1712815, 2055378, 3425630, 4110756, 5138445, 6851260, 10276890, 20553780]

約数ペア:

[(1, 20553780), (2, 10276890), (3, 6851260), (4, 5138445), (5, 4110756), (6, 3425630), (10, 2055378), (12, 1712815), (13, 1581060), (15, 1370252), (20, 1027689), (26, 790530), (30, 685126), (39, 527020), (52, 395265), (60, 342563), (65, 316212), (78, 263510), (130, 158106), (156, 131755), (169, 121620), (195, 105404), (260, 79053), (338, 60810), (390, 52702), (507, 40540), (676, 30405), (780, 26351), (845, 24324), (1014, 20270), (1690, 12162), (2027, 10140), (2028, 10135), (2535, 8108), (3380, 6081), (4054, 5070)]