7978040

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{28493}}^1$

素因数の和:28511

約数の個数: 32

約数和(自身を含む): 20515680

約数和(自身を除く): 12537640

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 28493, 56986, 113972, 142465, 199451, 227944, 284930, 398902, 569860, 797804, 997255, 1139720, 1595608, 1994510, 3989020, 7978040]

約数ペア:

[(1, 7978040), (2, 3989020), (4, 1994510), (5, 1595608), (7, 1139720), (8, 997255), (10, 797804), (14, 569860), (20, 398902), (28, 284930), (35, 227944), (40, 199451), (56, 142465), (70, 113972), (140, 56986), (280, 28493)]