80340640

素因数分解:

$2^5\times 5^1\times {\mathrm{17}}^1\times {\mathrm{29537}}^1$

素因数の和:29569

約数の個数: 48

約数和(自身を含む): 200976552

約数和(自身を除く): 120635912

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 68, 80, 85, 136, 160, 170, 272, 340, 544, 680, 1360, 2720, 29537, 59074, 118148, 147685, 236296, 295370, 472592, 502129, 590740, 945184, 1004258, 1181480, 2008516, 2362960, 2510645, 4017032, 4725920, 5021290, 8034064, 10042580, 16068128, 20085160, 40170320, 80340640]

約数ペア:

[(1, 80340640), (2, 40170320), (4, 20085160), (5, 16068128), (8, 10042580), (10, 8034064), (16, 5021290), (17, 4725920), (20, 4017032), (32, 2510645), (34, 2362960), (40, 2008516), (68, 1181480), (80, 1004258), (85, 945184), (136, 590740), (160, 502129), (170, 472592), (272, 295370), (340, 236296), (544, 147685), (680, 118148), (1360, 59074), (2720, 29537)]