990492075

素因数分解:

$3^2\times 5^2\times {\mathrm{61}}^1\times {\mathrm{72167}}^1$

素因数の和:72244

約数の個数: 36

約数和(自身を含む): 1803189648

約数和(自身を除く): 812697573

約数列:

[1, 3, 5, 9, 15, 25, 45, 61, 75, 183, 225, 305, 549, 915, 1525, 2745, 4575, 13725, 72167, 216501, 360835, 649503, 1082505, 1804175, 3247515, 4402187, 5412525, 13206561, 16237575, 22010935, 39619683, 66032805, 110054675, 198098415, 330164025, 990492075]

約数ペア:

[(1, 990492075), (3, 330164025), (5, 198098415), (9, 110054675), (15, 66032805), (25, 39619683), (45, 22010935), (61, 16237575), (75, 13206561), (183, 5412525), (225, 4402187), (305, 3247515), (549, 1804175), (915, 1082505), (1525, 649503), (2745, 360835), (4575, 216501), (13725, 72167)]