81941730

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{163}}^1\times {\mathrm{1289}}^1$

素因数の和:1475

約数の個数: 64

約数和(自身を含む): 213252480

約数和(自身を除く): 131310750

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 163, 195, 326, 390, 489, 815, 978, 1289, 1630, 2119, 2445, 2578, 3867, 4238, 4890, 6357, 6445, 7734, 10595, 12714, 12890, 16757, 19335, 21190, 31785, 33514, 38670, 50271, 63570, 83785, 100542, 167570, 210107, 251355, 420214, 502710, 630321, 1050535, 1260642, 2101070, 2731391, 3151605, 5462782, 6303210, 8194173, 13656955, 16388346, 27313910, 40970865, 81941730]

約数ペア:

[(1, 81941730), (2, 40970865), (3, 27313910), (5, 16388346), (6, 13656955), (10, 8194173), (13, 6303210), (15, 5462782), (26, 3151605), (30, 2731391), (39, 2101070), (65, 1260642), (78, 1050535), (130, 630321), (163, 502710), (195, 420214), (326, 251355), (390, 210107), (489, 167570), (815, 100542), (978, 83785), (1289, 63570), (1630, 50271), (2119, 38670), (2445, 33514), (2578, 31785), (3867, 21190), (4238, 19335), (4890, 16757), (6357, 12890), (6445, 12714), (7734, 10595)]