205710075

素因数分解:

$3^2\times 5^2\times {\mathrm{71}}^1\times {\mathrm{79}}^1\times {\mathrm{163}}^1$

素因数の和:329

約数の個数: 72

約数和(自身を含む): 380689920

約数和(自身を除く): 174979845

約数列:

[1, 3, 5, 9, 15, 25, 45, 71, 75, 79, 163, 213, 225, 237, 355, 395, 489, 639, 711, 815, 1065, 1185, 1467, 1775, 1975, 2445, 3195, 3555, 4075, 5325, 5609, 5925, 7335, 11573, 12225, 12877, 15975, 16827, 17775, 28045, 34719, 36675, 38631, 50481, 57865, 64385, 84135, 104157, 115893, 140225, 173595, 193155, 252405, 289325, 321925, 420675, 520785, 579465, 867975, 914267, 965775, 1262025, 2603925, 2742801, 2897325, 4571335, 8228403, 13714005, 22856675, 41142015, 68570025, 205710075]

約数ペア:

[(1, 205710075), (3, 68570025), (5, 41142015), (9, 22856675), (15, 13714005), (25, 8228403), (45, 4571335), (71, 2897325), (75, 2742801), (79, 2603925), (163, 1262025), (213, 965775), (225, 914267), (237, 867975), (355, 579465), (395, 520785), (489, 420675), (639, 321925), (711, 289325), (815, 252405), (1065, 193155), (1185, 173595), (1467, 140225), (1775, 115893), (1975, 104157), (2445, 84135), (3195, 64385), (3555, 57865), (4075, 50481), (5325, 38631), (5609, 36675), (5925, 34719), (7335, 28045), (11573, 17775), (12225, 16827), (12877, 15975)]