145440220

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{8089}}^1$

素因数の和:8158

約数の個数: 48

約数和(自身を含む): 326188800

約数和(自身を除く): 180748580

約数列:

[1, 2, 4, 5, 10, 20, 29, 31, 58, 62, 116, 124, 145, 155, 290, 310, 580, 620, 899, 1798, 3596, 4495, 8089, 8990, 16178, 17980, 32356, 40445, 80890, 161780, 234581, 250759, 469162, 501518, 938324, 1003036, 1172905, 1253795, 2345810, 2507590, 4691620, 5015180, 7272011, 14544022, 29088044, 36360055, 72720110, 145440220]

約数ペア:

[(1, 145440220), (2, 72720110), (4, 36360055), (5, 29088044), (10, 14544022), (20, 7272011), (29, 5015180), (31, 4691620), (58, 2507590), (62, 2345810), (116, 1253795), (124, 1172905), (145, 1003036), (155, 938324), (290, 501518), (310, 469162), (580, 250759), (620, 234581), (899, 161780), (1798, 80890), (3596, 40445), (4495, 32356), (8089, 17980), (8990, 16178)]