20137794020

素因数分解:

$2^2\times 5^1\times {\mathrm{149}}^1\times {\mathrm{431}}^1\times {\mathrm{15679}}^1$

素因数の和:16268

約数の個数: 48

約数和(自身を含む): 42674688000

約数和(自身を除く): 22536893980

約数列:

[1, 2, 4, 5, 10, 20, 149, 298, 431, 596, 745, 862, 1490, 1724, 2155, 2980, 4310, 8620, 15679, 31358, 62716, 64219, 78395, 128438, 156790, 256876, 313580, 321095, 642190, 1284380, 2336171, 4672342, 6757649, 9344684, 11680855, 13515298, 23361710, 27030596, 33788245, 46723420, 67576490, 135152980, 1006889701, 2013779402, 4027558804, 5034448505, 10068897010, 20137794020]

約数ペア:

[(1, 20137794020), (2, 10068897010), (4, 5034448505), (5, 4027558804), (10, 2013779402), (20, 1006889701), (149, 135152980), (298, 67576490), (431, 46723420), (596, 33788245), (745, 27030596), (862, 23361710), (1490, 13515298), (1724, 11680855), (2155, 9344684), (2980, 6757649), (4310, 4672342), (8620, 2336171), (15679, 1284380), (31358, 642190), (62716, 321095), (64219, 313580), (78395, 256876), (128438, 156790)]