1978074320

素因数分解:

$2^4\times 5^1\times {\mathrm{1801}}^1\times {\mathrm{13729}}^1$

素因数の和:15543

約数の個数: 40

約数和(自身を含む): 4601911560

約数和(自身を除く): 2623837240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1801, 3602, 7204, 9005, 13729, 14408, 18010, 27458, 28816, 36020, 54916, 68645, 72040, 109832, 137290, 144080, 219664, 274580, 549160, 1098320, 24725929, 49451858, 98903716, 123629645, 197807432, 247259290, 395614864, 494518580, 989037160, 1978074320]

約数ペア:

[(1, 1978074320), (2, 989037160), (4, 494518580), (5, 395614864), (8, 247259290), (10, 197807432), (16, 123629645), (20, 98903716), (40, 49451858), (80, 24725929), (1801, 1098320), (3602, 549160), (7204, 274580), (9005, 219664), (13729, 144080), (14408, 137290), (18010, 109832), (27458, 72040), (28816, 68645), (36020, 54916)]