158317775

素因数分解:

$5^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{379}}^1$

素因数の和:445

約数の個数: 72

約数和(自身を含む): 257840640

約数和(自身を除く): 99522865

約数列:

[1, 5, 7, 11, 25, 31, 35, 49, 55, 77, 155, 175, 217, 245, 275, 341, 379, 385, 539, 775, 1085, 1225, 1519, 1705, 1895, 1925, 2387, 2653, 2695, 4169, 5425, 7595, 8525, 9475, 11749, 11935, 13265, 13475, 16709, 18571, 20845, 29183, 37975, 58745, 59675, 66325, 82243, 83545, 92855, 104225, 129239, 145915, 204281, 293725, 411215, 417725, 464275, 575701, 646195, 729575, 904673, 1021405, 2056075, 2878505, 3230975, 4523365, 5107025, 6332711, 14392525, 22616825, 31663555, 158317775]

約数ペア:

[(1, 158317775), (5, 31663555), (7, 22616825), (11, 14392525), (25, 6332711), (31, 5107025), (35, 4523365), (49, 3230975), (55, 2878505), (77, 2056075), (155, 1021405), (175, 904673), (217, 729575), (245, 646195), (275, 575701), (341, 464275), (379, 417725), (385, 411215), (539, 293725), (775, 204281), (1085, 145915), (1225, 129239), (1519, 104225), (1705, 92855), (1895, 83545), (1925, 82243), (2387, 66325), (2653, 59675), (2695, 58745), (4169, 37975), (5425, 29183), (7595, 20845), (8525, 18571), (9475, 16709), (11749, 13475), (11935, 13265)]