217871925

素因数分解:

$3^1\times 5^2\times {\mathrm{29}}^1\times {\mathrm{109}}^1\times {\mathrm{919}}^1$

素因数の和:1070

約数の個数: 48

約数和(自身を含む): 376464000

約数和(自身を除く): 158592075

約数列:

[1, 3, 5, 15, 25, 29, 75, 87, 109, 145, 327, 435, 545, 725, 919, 1635, 2175, 2725, 2757, 3161, 4595, 8175, 9483, 13785, 15805, 22975, 26651, 47415, 68925, 79025, 79953, 100171, 133255, 237075, 300513, 399765, 500855, 666275, 1502565, 1998825, 2504275, 2904959, 7512825, 8714877, 14524795, 43574385, 72623975, 217871925]

約数ペア:

[(1, 217871925), (3, 72623975), (5, 43574385), (15, 14524795), (25, 8714877), (29, 7512825), (75, 2904959), (87, 2504275), (109, 1998825), (145, 1502565), (327, 666275), (435, 500855), (545, 399765), (725, 300513), (919, 237075), (1635, 133255), (2175, 100171), (2725, 79953), (2757, 79025), (3161, 68925), (4595, 47415), (8175, 26651), (9483, 22975), (13785, 15805)]