40252420

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{11909}}^1$

素因数の和:11944

約数の個数: 36

約数和(自身を含む): 91540260

約数和(自身を除く): 51287840

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 169, 260, 338, 676, 845, 1690, 3380, 11909, 23818, 47636, 59545, 119090, 154817, 238180, 309634, 619268, 774085, 1548170, 2012621, 3096340, 4025242, 8050484, 10063105, 20126210, 40252420]

約数ペア:

[(1, 40252420), (2, 20126210), (4, 10063105), (5, 8050484), (10, 4025242), (13, 3096340), (20, 2012621), (26, 1548170), (52, 774085), (65, 619268), (130, 309634), (169, 238180), (260, 154817), (338, 119090), (676, 59545), (845, 47636), (1690, 23818), (3380, 11909)]