388978850

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^3\times {\mathrm{3541}}^1$

素因数の和:3592

約数の個数: 48

約数和(自身を含む): 783986280

約数和(自身を除く): 395007430

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 130, 169, 325, 338, 650, 845, 1690, 2197, 3541, 4225, 4394, 7082, 8450, 10985, 17705, 21970, 35410, 46033, 54925, 88525, 92066, 109850, 177050, 230165, 460330, 598429, 1150825, 1196858, 2301650, 2992145, 5984290, 7779577, 14960725, 15559154, 29921450, 38897885, 77795770, 194489425, 388978850]

約数ペア:

[(1, 388978850), (2, 194489425), (5, 77795770), (10, 38897885), (13, 29921450), (25, 15559154), (26, 14960725), (50, 7779577), (65, 5984290), (130, 2992145), (169, 2301650), (325, 1196858), (338, 1150825), (650, 598429), (845, 460330), (1690, 230165), (2197, 177050), (3541, 109850), (4225, 92066), (4394, 88525), (7082, 54925), (8450, 46033), (10985, 35410), (17705, 21970)]