81655665

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{163}}^1\times {\mathrm{367}}^1$

素因数の和:558

約数の個数: 64

約数和(自身を含む): 162226176

約数和(自身を除く): 80570511

約数列:

[1, 3, 5, 7, 13, 15, 21, 35, 39, 65, 91, 105, 163, 195, 273, 367, 455, 489, 815, 1101, 1141, 1365, 1835, 2119, 2445, 2569, 3423, 4771, 5505, 5705, 6357, 7707, 10595, 12845, 14313, 14833, 17115, 23855, 31785, 33397, 38535, 44499, 59821, 71565, 74165, 100191, 166985, 179463, 222495, 299105, 418747, 500955, 777673, 897315, 1256241, 2093735, 2333019, 3888365, 5443711, 6281205, 11665095, 16331133, 27218555, 81655665]

約数ペア:

[(1, 81655665), (3, 27218555), (5, 16331133), (7, 11665095), (13, 6281205), (15, 5443711), (21, 3888365), (35, 2333019), (39, 2093735), (65, 1256241), (91, 897315), (105, 777673), (163, 500955), (195, 418747), (273, 299105), (367, 222495), (455, 179463), (489, 166985), (815, 100191), (1101, 74165), (1141, 71565), (1365, 59821), (1835, 44499), (2119, 38535), (2445, 33397), (2569, 31785), (3423, 23855), (4771, 17115), (5505, 14833), (5705, 14313), (6357, 12845), (7707, 10595)]