131620640

素因数分解:

$2^5\times 5^1\times {\mathrm{149}}^1\times {\mathrm{5521}}^1$

素因数の和:5685

約数の個数: 48

約数和(自身を含む): 313097400

約数和(自身を除く): 181476760

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 149, 160, 298, 596, 745, 1192, 1490, 2384, 2980, 4768, 5521, 5960, 11042, 11920, 22084, 23840, 27605, 44168, 55210, 88336, 110420, 176672, 220840, 441680, 822629, 883360, 1645258, 3290516, 4113145, 6581032, 8226290, 13162064, 16452580, 26324128, 32905160, 65810320, 131620640]

約数ペア:

[(1, 131620640), (2, 65810320), (4, 32905160), (5, 26324128), (8, 16452580), (10, 13162064), (16, 8226290), (20, 6581032), (32, 4113145), (40, 3290516), (80, 1645258), (149, 883360), (160, 822629), (298, 441680), (596, 220840), (745, 176672), (1192, 110420), (1490, 88336), (2384, 55210), (2980, 44168), (4768, 27605), (5521, 23840), (5960, 22084), (11042, 11920)]