1261896980

素因数分解:

$2^2\times 5^1\times {\mathrm{73}}^1\times {\mathrm{421}}^1\times {\mathrm{2053}}^1$

素因数の和:2556

約数の個数: 48

約数和(自身を含む): 2693977104

約数和(自身を除く): 1432080124

約数列:

[1, 2, 4, 5, 10, 20, 73, 146, 292, 365, 421, 730, 842, 1460, 1684, 2053, 2105, 4106, 4210, 8212, 8420, 10265, 20530, 30733, 41060, 61466, 122932, 149869, 153665, 299738, 307330, 599476, 614660, 749345, 864313, 1498690, 1728626, 2997380, 3457252, 4321565, 8643130, 17286260, 63094849, 126189698, 252379396, 315474245, 630948490, 1261896980]

約数ペア:

[(1, 1261896980), (2, 630948490), (4, 315474245), (5, 252379396), (10, 126189698), (20, 63094849), (73, 17286260), (146, 8643130), (292, 4321565), (365, 3457252), (421, 2997380), (730, 1728626), (842, 1498690), (1460, 864313), (1684, 749345), (2053, 614660), (2105, 599476), (4106, 307330), (4210, 299738), (8212, 153665), (8420, 149869), (10265, 122932), (20530, 61466), (30733, 41060)]