31811120

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{977}}^1$

素因数の和:1038

約数の個数: 80

約数和(自身を含む): 82950048

約数和(自身を除く): 51138928

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 37, 40, 44, 55, 74, 80, 88, 110, 148, 176, 185, 220, 296, 370, 407, 440, 592, 740, 814, 880, 977, 1480, 1628, 1954, 2035, 2960, 3256, 3908, 4070, 4885, 6512, 7816, 8140, 9770, 10747, 15632, 16280, 19540, 21494, 32560, 36149, 39080, 42988, 53735, 72298, 78160, 85976, 107470, 144596, 171952, 180745, 214940, 289192, 361490, 397639, 429880, 578384, 722980, 795278, 859760, 1445960, 1590556, 1988195, 2891920, 3181112, 3976390, 6362224, 7952780, 15905560, 31811120]

約数ペア:

[(1, 31811120), (2, 15905560), (4, 7952780), (5, 6362224), (8, 3976390), (10, 3181112), (11, 2891920), (16, 1988195), (20, 1590556), (22, 1445960), (37, 859760), (40, 795278), (44, 722980), (55, 578384), (74, 429880), (80, 397639), (88, 361490), (110, 289192), (148, 214940), (176, 180745), (185, 171952), (220, 144596), (296, 107470), (370, 85976), (407, 78160), (440, 72298), (592, 53735), (740, 42988), (814, 39080), (880, 36149), (977, 32560), (1480, 21494), (1628, 19540), (1954, 16280), (2035, 15632), (2960, 10747), (3256, 9770), (3908, 8140), (4070, 7816), (4885, 6512)]