15850900

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{137}}^1$

素因数の和:253

約数の個数: 72

約数和(自身を含む): 37731960

約数和(自身を除く): 21881060

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 89, 100, 130, 137, 178, 260, 274, 325, 356, 445, 548, 650, 685, 890, 1157, 1300, 1370, 1780, 1781, 2225, 2314, 2740, 3425, 3562, 4450, 4628, 5785, 6850, 7124, 8900, 8905, 11570, 12193, 13700, 17810, 23140, 24386, 28925, 35620, 44525, 48772, 57850, 60965, 89050, 115700, 121930, 158509, 178100, 243860, 304825, 317018, 609650, 634036, 792545, 1219300, 1585090, 3170180, 3962725, 7925450, 15850900]

約数ペア:

[(1, 15850900), (2, 7925450), (4, 3962725), (5, 3170180), (10, 1585090), (13, 1219300), (20, 792545), (25, 634036), (26, 609650), (50, 317018), (52, 304825), (65, 243860), (89, 178100), (100, 158509), (130, 121930), (137, 115700), (178, 89050), (260, 60965), (274, 57850), (325, 48772), (356, 44525), (445, 35620), (548, 28925), (650, 24386), (685, 23140), (890, 17810), (1157, 13700), (1300, 12193), (1370, 11570), (1780, 8905), (1781, 8900), (2225, 7124), (2314, 6850), (2740, 5785), (3425, 4628), (3562, 4450)]