31686680

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{173}}^1\times {\mathrm{241}}^1$

素因数の和:444

約数の個数: 64

約数和(自身を含む): 75794400

約数和(自身を除く): 44107720

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 173, 190, 241, 346, 380, 482, 692, 760, 865, 964, 1205, 1384, 1730, 1928, 2410, 3287, 3460, 4579, 4820, 6574, 6920, 9158, 9640, 13148, 16435, 18316, 22895, 26296, 32870, 36632, 41693, 45790, 65740, 83386, 91580, 131480, 166772, 183160, 208465, 333544, 416930, 792167, 833860, 1584334, 1667720, 3168668, 3960835, 6337336, 7921670, 15843340, 31686680]

約数ペア:

[(1, 31686680), (2, 15843340), (4, 7921670), (5, 6337336), (8, 3960835), (10, 3168668), (19, 1667720), (20, 1584334), (38, 833860), (40, 792167), (76, 416930), (95, 333544), (152, 208465), (173, 183160), (190, 166772), (241, 131480), (346, 91580), (380, 83386), (482, 65740), (692, 45790), (760, 41693), (865, 36632), (964, 32870), (1205, 26296), (1384, 22895), (1730, 18316), (1928, 16435), (2410, 13148), (3287, 9640), (3460, 9158), (4579, 6920), (4820, 6574)]