656320720

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{12641}}^1$

素因数の和:12724

約数の個数: 80

約数和(自身を含む): 1693016640

約数和(自身を除く): 1036695920

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 59, 80, 88, 110, 118, 176, 220, 236, 295, 440, 472, 590, 649, 880, 944, 1180, 1298, 2360, 2596, 3245, 4720, 5192, 6490, 10384, 12641, 12980, 25282, 25960, 50564, 51920, 63205, 101128, 126410, 139051, 202256, 252820, 278102, 505640, 556204, 695255, 745819, 1011280, 1112408, 1390510, 1491638, 2224816, 2781020, 2983276, 3729095, 5562040, 5966552, 7458190, 8204009, 11124080, 11933104, 14916380, 16408018, 29832760, 32816036, 41020045, 59665520, 65632072, 82040090, 131264144, 164080180, 328160360, 656320720]

約数ペア:

[(1, 656320720), (2, 328160360), (4, 164080180), (5, 131264144), (8, 82040090), (10, 65632072), (11, 59665520), (16, 41020045), (20, 32816036), (22, 29832760), (40, 16408018), (44, 14916380), (55, 11933104), (59, 11124080), (80, 8204009), (88, 7458190), (110, 5966552), (118, 5562040), (176, 3729095), (220, 2983276), (236, 2781020), (295, 2224816), (440, 1491638), (472, 1390510), (590, 1112408), (649, 1011280), (880, 745819), (944, 695255), (1180, 556204), (1298, 505640), (2360, 278102), (2596, 252820), (3245, 202256), (4720, 139051), (5192, 126410), (6490, 101128), (10384, 63205), (12641, 51920), (12980, 50564), (25282, 25960)]