279969680

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{1429}}^1$

素因数の和:1552

約数の個数: 80

約数和(自身を含む): 680908800

約数和(自身を除く): 400939120

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 79, 80, 124, 155, 158, 248, 310, 316, 395, 496, 620, 632, 790, 1240, 1264, 1429, 1580, 2449, 2480, 2858, 3160, 4898, 5716, 6320, 7145, 9796, 11432, 12245, 14290, 19592, 22864, 24490, 28580, 39184, 44299, 48980, 57160, 88598, 97960, 112891, 114320, 177196, 195920, 221495, 225782, 354392, 442990, 451564, 564455, 708784, 885980, 903128, 1128910, 1771960, 1806256, 2257820, 3499621, 3543920, 4515640, 6999242, 9031280, 13998484, 17498105, 27996968, 34996210, 55993936, 69992420, 139984840, 279969680]

約数ペア:

[(1, 279969680), (2, 139984840), (4, 69992420), (5, 55993936), (8, 34996210), (10, 27996968), (16, 17498105), (20, 13998484), (31, 9031280), (40, 6999242), (62, 4515640), (79, 3543920), (80, 3499621), (124, 2257820), (155, 1806256), (158, 1771960), (248, 1128910), (310, 903128), (316, 885980), (395, 708784), (496, 564455), (620, 451564), (632, 442990), (790, 354392), (1240, 225782), (1264, 221495), (1429, 195920), (1580, 177196), (2449, 114320), (2480, 112891), (2858, 97960), (3160, 88598), (4898, 57160), (5716, 48980), (6320, 44299), (7145, 39184), (9796, 28580), (11432, 24490), (12245, 22864), (14290, 19592)]