81100575

素因数分解:

$3^3\times 5^2\times {\mathrm{137}}^1\times {\mathrm{877}}^1$

素因数の和:1033

約数の個数: 48

約数和(自身を含む): 150243360

約数和(自身を除く): 69142785

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 135, 137, 225, 411, 675, 685, 877, 1233, 2055, 2631, 3425, 3699, 4385, 6165, 7893, 10275, 13155, 18495, 21925, 23679, 30825, 39465, 65775, 92475, 118395, 120149, 197325, 360447, 591975, 600745, 1081341, 1802235, 3003725, 3244023, 5406705, 9011175, 16220115, 27033525, 81100575]

約数ペア:

[(1, 81100575), (3, 27033525), (5, 16220115), (9, 9011175), (15, 5406705), (25, 3244023), (27, 3003725), (45, 1802235), (75, 1081341), (135, 600745), (137, 591975), (225, 360447), (411, 197325), (675, 120149), (685, 118395), (877, 92475), (1233, 65775), (2055, 39465), (2631, 30825), (3425, 23679), (3699, 21925), (4385, 18495), (6165, 13155), (7893, 10275)]