211369240

素因数分解:

$2^3\times 5^1\times {\mathrm{79}}^1\times {\mathrm{66889}}^1$

素因数の和:66979

約数の個数: 32

約数和(自身を含む): 481608000

約数和(自身を除く): 270238760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 79, 158, 316, 395, 632, 790, 1580, 3160, 66889, 133778, 267556, 334445, 535112, 668890, 1337780, 2675560, 5284231, 10568462, 21136924, 26421155, 42273848, 52842310, 105684620, 211369240]

約数ペア:

[(1, 211369240), (2, 105684620), (4, 52842310), (5, 42273848), (8, 26421155), (10, 21136924), (20, 10568462), (40, 5284231), (79, 2675560), (158, 1337780), (316, 668890), (395, 535112), (632, 334445), (790, 267556), (1580, 133778), (3160, 66889)]