2100057220

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^2\times {\mathrm{109}}^1\times {\mathrm{521}}^1$

素因数の和:725

約数の個数: 72

約数和(自身を含む): 4565234520

約数和(自身を除く): 2465177300

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 109, 172, 215, 218, 430, 436, 521, 545, 860, 1042, 1090, 1849, 2084, 2180, 2605, 3698, 4687, 5210, 7396, 9245, 9374, 10420, 18490, 18748, 22403, 23435, 36980, 44806, 46870, 56789, 89612, 93740, 112015, 113578, 201541, 224030, 227156, 283945, 403082, 448060, 567890, 806164, 963329, 1007705, 1135780, 1926658, 2015410, 2441927, 3853316, 4030820, 4816645, 4883854, 9633290, 9767708, 12209635, 19266580, 24419270, 48838540, 105002861, 210005722, 420011444, 525014305, 1050028610, 2100057220]

約数ペア:

[(1, 2100057220), (2, 1050028610), (4, 525014305), (5, 420011444), (10, 210005722), (20, 105002861), (43, 48838540), (86, 24419270), (109, 19266580), (172, 12209635), (215, 9767708), (218, 9633290), (430, 4883854), (436, 4816645), (521, 4030820), (545, 3853316), (860, 2441927), (1042, 2015410), (1090, 1926658), (1849, 1135780), (2084, 1007705), (2180, 963329), (2605, 806164), (3698, 567890), (4687, 448060), (5210, 403082), (7396, 283945), (9245, 227156), (9374, 224030), (10420, 201541), (18490, 113578), (18748, 112015), (22403, 93740), (23435, 89612), (36980, 56789), (44806, 46870)]