31455735

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^2\times {\mathrm{37}}^1\times {\mathrm{157}}^1$

素因数の和:240

約数の個数: 48

約数和(自身を含む): 54900576

約数和(自身を除く): 23444841

約数列:

[1, 3, 5, 15, 19, 37, 57, 95, 111, 157, 185, 285, 361, 471, 555, 703, 785, 1083, 1805, 2109, 2355, 2983, 3515, 5415, 5809, 8949, 10545, 13357, 14915, 17427, 29045, 40071, 44745, 56677, 66785, 87135, 110371, 170031, 200355, 283385, 331113, 551855, 850155, 1655565, 2097049, 6291147, 10485245, 31455735]

約数ペア:

[(1, 31455735), (3, 10485245), (5, 6291147), (15, 2097049), (19, 1655565), (37, 850155), (57, 551855), (95, 331113), (111, 283385), (157, 200355), (185, 170031), (285, 110371), (361, 87135), (471, 66785), (555, 56677), (703, 44745), (785, 40071), (1083, 29045), (1805, 17427), (2109, 14915), (2355, 13357), (2983, 10545), (3515, 8949), (5415, 5809)]