80571728

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{2663}}^1$

素因数の和:2763

約数の個数: 40

約数和(自身を含む): 163846656

約数和(自身を除く): 83274928

約数列:

[1, 2, 4, 8, 16, 31, 61, 62, 122, 124, 244, 248, 488, 496, 976, 1891, 2663, 3782, 5326, 7564, 10652, 15128, 21304, 30256, 42608, 82553, 162443, 165106, 324886, 330212, 649772, 660424, 1299544, 1320848, 2599088, 5035733, 10071466, 20142932, 40285864, 80571728]

約数ペア:

[(1, 80571728), (2, 40285864), (4, 20142932), (8, 10071466), (16, 5035733), (31, 2599088), (61, 1320848), (62, 1299544), (122, 660424), (124, 649772), (244, 330212), (248, 324886), (488, 165106), (496, 162443), (976, 82553), (1891, 42608), (2663, 30256), (3782, 21304), (5326, 15128), (7564, 10652)]