90707920

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{66697}}^1$

素因数の和:66727

約数の個数: 40

約数和(自身を含む): 223304904

約数和(自身を除く): 132596984

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 680, 1360, 66697, 133394, 266788, 333485, 533576, 666970, 1067152, 1133849, 1333940, 2267698, 2667880, 4535396, 5335760, 5669245, 9070792, 11338490, 18141584, 22676980, 45353960, 90707920]

約数ペア:

[(1, 90707920), (2, 45353960), (4, 22676980), (5, 18141584), (8, 11338490), (10, 9070792), (16, 5669245), (17, 5335760), (20, 4535396), (34, 2667880), (40, 2267698), (68, 1333940), (80, 1133849), (85, 1067152), (136, 666970), (170, 533576), (272, 333485), (340, 266788), (680, 133394), (1360, 66697)]