15967480

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{163}}^1$

素因数の和:284

約数の個数: 64

約数和(自身を含む): 37785600

約数和(自身を除く): 21818120

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 79, 124, 155, 158, 163, 248, 310, 316, 326, 395, 620, 632, 652, 790, 815, 1240, 1304, 1580, 1630, 2449, 3160, 3260, 4898, 5053, 6520, 9796, 10106, 12245, 12877, 19592, 20212, 24490, 25265, 25754, 40424, 48980, 50530, 51508, 64385, 97960, 101060, 103016, 128770, 202120, 257540, 399187, 515080, 798374, 1596748, 1995935, 3193496, 3991870, 7983740, 15967480]

約数ペア:

[(1, 15967480), (2, 7983740), (4, 3991870), (5, 3193496), (8, 1995935), (10, 1596748), (20, 798374), (31, 515080), (40, 399187), (62, 257540), (79, 202120), (124, 128770), (155, 103016), (158, 101060), (163, 97960), (248, 64385), (310, 51508), (316, 50530), (326, 48980), (395, 40424), (620, 25754), (632, 25265), (652, 24490), (790, 20212), (815, 19592), (1240, 12877), (1304, 12245), (1580, 10106), (1630, 9796), (2449, 6520), (3160, 5053), (3260, 4898)]