39945825

素因数分解:

$3^3\times 5^2\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{83}}^1$

素因数の和:156

約数の個数: 96

約数和(自身を含む): 79994880

約数和(自身を除く): 40049055

約数列:

[1, 3, 5, 9, 15, 23, 25, 27, 31, 45, 69, 75, 83, 93, 115, 135, 155, 207, 225, 249, 279, 345, 415, 465, 575, 621, 675, 713, 747, 775, 837, 1035, 1245, 1395, 1725, 1909, 2075, 2139, 2241, 2325, 2573, 3105, 3565, 3735, 4185, 5175, 5727, 6225, 6417, 6975, 7719, 9545, 10695, 11205, 12865, 15525, 17181, 17825, 18675, 19251, 20925, 23157, 28635, 32085, 38595, 47725, 51543, 53475, 56025, 59179, 64325, 69471, 85905, 96255, 115785, 143175, 160425, 177537, 192975, 257715, 295895, 347355, 429525, 481275, 532611, 578925, 887685, 1288575, 1479475, 1597833, 1736775, 2663055, 4438425, 7989165, 13315275, 39945825]

約数ペア:

[(1, 39945825), (3, 13315275), (5, 7989165), (9, 4438425), (15, 2663055), (23, 1736775), (25, 1597833), (27, 1479475), (31, 1288575), (45, 887685), (69, 578925), (75, 532611), (83, 481275), (93, 429525), (115, 347355), (135, 295895), (155, 257715), (207, 192975), (225, 177537), (249, 160425), (279, 143175), (345, 115785), (415, 96255), (465, 85905), (575, 69471), (621, 64325), (675, 59179), (713, 56025), (747, 53475), (775, 51543), (837, 47725), (1035, 38595), (1245, 32085), (1395, 28635), (1725, 23157), (1909, 20925), (2075, 19251), (2139, 18675), (2241, 17825), (2325, 17181), (2573, 15525), (3105, 12865), (3565, 11205), (3735, 10695), (4185, 9545), (5175, 7719), (5727, 6975), (6225, 6417)]