31126940

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{6301}}^1$

素因数の和:6342

約数の個数: 48

約数和(自身を含む): 74111520

約数和(自身を除く): 42984580

約数列:

[1, 2, 4, 5, 10, 13, 19, 20, 26, 38, 52, 65, 76, 95, 130, 190, 247, 260, 380, 494, 988, 1235, 2470, 4940, 6301, 12602, 25204, 31505, 63010, 81913, 119719, 126020, 163826, 239438, 327652, 409565, 478876, 598595, 819130, 1197190, 1556347, 1638260, 2394380, 3112694, 6225388, 7781735, 15563470, 31126940]

約数ペア:

[(1, 31126940), (2, 15563470), (4, 7781735), (5, 6225388), (10, 3112694), (13, 2394380), (19, 1638260), (20, 1556347), (26, 1197190), (38, 819130), (52, 598595), (65, 478876), (76, 409565), (95, 327652), (130, 239438), (190, 163826), (247, 126020), (260, 119719), (380, 81913), (494, 63010), (988, 31505), (1235, 25204), (2470, 12602), (4940, 6301)]