1804152940

素因数分解:

$2^2\times 5^1\times {\mathrm{157}}^1\times {\mathrm{443}}^1\times {\mathrm{1297}}^1$

素因数の和:1906

約数の個数: 48

約数和(自身を含む): 3824406432

約数和(自身を除く): 2020253492

約数列:

[1, 2, 4, 5, 10, 20, 157, 314, 443, 628, 785, 886, 1297, 1570, 1772, 2215, 2594, 3140, 4430, 5188, 6485, 8860, 12970, 25940, 69551, 139102, 203629, 278204, 347755, 407258, 574571, 695510, 814516, 1018145, 1149142, 1391020, 2036290, 2298284, 2872855, 4072580, 5745710, 11491420, 90207647, 180415294, 360830588, 451038235, 902076470, 1804152940]

約数ペア:

[(1, 1804152940), (2, 902076470), (4, 451038235), (5, 360830588), (10, 180415294), (20, 90207647), (157, 11491420), (314, 5745710), (443, 4072580), (628, 2872855), (785, 2298284), (886, 2036290), (1297, 1391020), (1570, 1149142), (1772, 1018145), (2215, 814516), (2594, 695510), (3140, 574571), (4430, 407258), (5188, 347755), (6485, 278204), (8860, 203629), (12970, 139102), (25940, 69551)]