7945240

素因数分解:

$2^3\times 5^1\times {\mathrm{139}}^1\times {\mathrm{1429}}^1$

素因数の和:1579

約数の個数: 32

約数和(自身を含む): 18018000

約数和(自身を除く): 10072760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 139, 278, 556, 695, 1112, 1390, 1429, 2780, 2858, 5560, 5716, 7145, 11432, 14290, 28580, 57160, 198631, 397262, 794524, 993155, 1589048, 1986310, 3972620, 7945240]

約数ペア:

[(1, 7945240), (2, 3972620), (4, 1986310), (5, 1589048), (8, 993155), (10, 794524), (20, 397262), (40, 198631), (139, 57160), (278, 28580), (556, 14290), (695, 11432), (1112, 7145), (1390, 5716), (1429, 5560), (2780, 2858)]