31851980

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{769}}^1$

素因数の和:906

約数の個数: 48

約数和(自身を含む): 71148000

約数和(自身を除く): 39296020

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 109, 190, 218, 380, 436, 545, 769, 1090, 1538, 2071, 2180, 3076, 3845, 4142, 7690, 8284, 10355, 14611, 15380, 20710, 29222, 41420, 58444, 73055, 83821, 146110, 167642, 292220, 335284, 419105, 838210, 1592599, 1676420, 3185198, 6370396, 7962995, 15925990, 31851980]

約数ペア:

[(1, 31851980), (2, 15925990), (4, 7962995), (5, 6370396), (10, 3185198), (19, 1676420), (20, 1592599), (38, 838210), (76, 419105), (95, 335284), (109, 292220), (190, 167642), (218, 146110), (380, 83821), (436, 73055), (545, 58444), (769, 41420), (1090, 29222), (1538, 20710), (2071, 15380), (2180, 14611), (3076, 10355), (3845, 8284), (4142, 7690)]