42940640

素因数分解:

$2^5\times 5^1\times {\mathrm{17}}^1\times {\mathrm{15787}}^1$

素因数の和:15819

約数の個数: 48

約数和(自身を含む): 107421552

約数和(自身を除く): 64480912

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, 15787, 31574, 63148, 78935, 126296, 157870, 252592, 268379, 315740, 505184, 536758, 631480, 1073516, 1262960, 1341895, 2147032, 2525920, 2683790, 4294064, 5367580, 8588128, 10735160, 21470320, 42940640]

約数ペア:

[(1, 42940640), (2, 21470320), (4, 10735160), (5, 8588128), (8, 5367580), (10, 4294064), (16, 2683790), (17, 2525920), (20, 2147032), (32, 1341895), (34, 1262960), (40, 1073516), (68, 631480), (80, 536758), (85, 505184), (136, 315740), (160, 268379), (170, 252592), (272, 157870), (340, 126296), (544, 78935), (680, 63148), (1360, 31574), (2720, 15787)]