253786640

素因数分解:

$2^4\times 5^1\times {\mathrm{127}}^1\times {\mathrm{24979}}^1$

素因数の和:25119

約数の個数: 40

約数和(自身を含む): 594723840

約数和(自身を除く): 340937200

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 127, 254, 508, 635, 1016, 1270, 2032, 2540, 5080, 10160, 24979, 49958, 99916, 124895, 199832, 249790, 399664, 499580, 999160, 1998320, 3172333, 6344666, 12689332, 15861665, 25378664, 31723330, 50757328, 63446660, 126893320, 253786640]

約数ペア:

[(1, 253786640), (2, 126893320), (4, 63446660), (5, 50757328), (8, 31723330), (10, 25378664), (16, 15861665), (20, 12689332), (40, 6344666), (80, 3172333), (127, 1998320), (254, 999160), (508, 499580), (635, 399664), (1016, 249790), (1270, 199832), (2032, 124895), (2540, 99916), (5080, 49958), (10160, 24979)]