87977560

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{2531}}^1$

素因数の和:2632

約数の個数: 64

約数和(自身を含む): 218764800

約数和(自身を除く): 130787240

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 79, 88, 110, 158, 220, 316, 395, 440, 632, 790, 869, 1580, 1738, 2531, 3160, 3476, 4345, 5062, 6952, 8690, 10124, 12655, 17380, 20248, 25310, 27841, 34760, 50620, 55682, 101240, 111364, 139205, 199949, 222728, 278410, 399898, 556820, 799796, 999745, 1113640, 1599592, 1999490, 2199439, 3998980, 4398878, 7997960, 8797756, 10997195, 17595512, 21994390, 43988780, 87977560]

約数ペア:

[(1, 87977560), (2, 43988780), (4, 21994390), (5, 17595512), (8, 10997195), (10, 8797756), (11, 7997960), (20, 4398878), (22, 3998980), (40, 2199439), (44, 1999490), (55, 1599592), (79, 1113640), (88, 999745), (110, 799796), (158, 556820), (220, 399898), (316, 278410), (395, 222728), (440, 199949), (632, 139205), (790, 111364), (869, 101240), (1580, 55682), (1738, 50620), (2531, 34760), (3160, 27841), (3476, 25310), (4345, 20248), (5062, 17380), (6952, 12655), (8690, 10124)]