81523640

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{6389}}^1$

素因数の和:6440

約数の個数: 64

約数和(自身を含む): 207036000

約数和(自身を除く): 125512360

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 29, 40, 44, 55, 58, 88, 110, 116, 145, 220, 232, 290, 319, 440, 580, 638, 1160, 1276, 1595, 2552, 3190, 6380, 6389, 12760, 12778, 25556, 31945, 51112, 63890, 70279, 127780, 140558, 185281, 255560, 281116, 351395, 370562, 562232, 702790, 741124, 926405, 1405580, 1482248, 1852810, 2038091, 2811160, 3705620, 4076182, 7411240, 8152364, 10190455, 16304728, 20380910, 40761820, 81523640]

約数ペア:

[(1, 81523640), (2, 40761820), (4, 20380910), (5, 16304728), (8, 10190455), (10, 8152364), (11, 7411240), (20, 4076182), (22, 3705620), (29, 2811160), (40, 2038091), (44, 1852810), (55, 1482248), (58, 1405580), (88, 926405), (110, 741124), (116, 702790), (145, 562232), (220, 370562), (232, 351395), (290, 281116), (319, 255560), (440, 185281), (580, 140558), (638, 127780), (1160, 70279), (1276, 63890), (1595, 51112), (2552, 31945), (3190, 25556), (6380, 12778), (6389, 12760)]