81158240

素因数分解:

$2^5\times 5^1\times {\mathrm{29}}^1\times {\mathrm{17491}}^1$

素因数の和:17535

約数の個数: 48

約数和(自身を含む): 198359280

約数和(自身を除く): 117201040

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 32, 40, 58, 80, 116, 145, 160, 232, 290, 464, 580, 928, 1160, 2320, 4640, 17491, 34982, 69964, 87455, 139928, 174910, 279856, 349820, 507239, 559712, 699640, 1014478, 1399280, 2028956, 2536195, 2798560, 4057912, 5072390, 8115824, 10144780, 16231648, 20289560, 40579120, 81158240]

約数ペア:

[(1, 81158240), (2, 40579120), (4, 20289560), (5, 16231648), (8, 10144780), (10, 8115824), (16, 5072390), (20, 4057912), (29, 2798560), (32, 2536195), (40, 2028956), (58, 1399280), (80, 1014478), (116, 699640), (145, 559712), (160, 507239), (232, 349820), (290, 279856), (464, 174910), (580, 139928), (928, 87455), (1160, 69964), (2320, 34982), (4640, 17491)]