252249980

素因数分解:

$2^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{251}}^1\times {\mathrm{461}}^1$

素因数の和:830

約数の個数: 48

約数和(自身を含む): 537878880

約数和(自身を除く): 285628900

約数列:

[1, 2, 4, 5, 10, 20, 109, 218, 251, 436, 461, 502, 545, 922, 1004, 1090, 1255, 1844, 2180, 2305, 2510, 4610, 5020, 9220, 27359, 50249, 54718, 100498, 109436, 115711, 136795, 200996, 231422, 251245, 273590, 462844, 502490, 547180, 578555, 1004980, 1157110, 2314220, 12612499, 25224998, 50449996, 63062495, 126124990, 252249980]

約数ペア:

[(1, 252249980), (2, 126124990), (4, 63062495), (5, 50449996), (10, 25224998), (20, 12612499), (109, 2314220), (218, 1157110), (251, 1004980), (436, 578555), (461, 547180), (502, 502490), (545, 462844), (922, 273590), (1004, 251245), (1090, 231422), (1255, 200996), (1844, 136795), (2180, 115711), (2305, 109436), (2510, 100498), (4610, 54718), (5020, 50249), (9220, 27359)]