40721360

素因数分解:

$2^4\times 5^1\times {\mathrm{521}}^1\times {\mathrm{977}}^1$

素因数の和:1511

約数の個数: 40

約数和(自身を含む): 94955976

約数和(自身を除く): 54234616

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 521, 977, 1042, 1954, 2084, 2605, 3908, 4168, 4885, 5210, 7816, 8336, 9770, 10420, 15632, 19540, 20840, 39080, 41680, 78160, 509017, 1018034, 2036068, 2545085, 4072136, 5090170, 8144272, 10180340, 20360680, 40721360]

約数ペア:

[(1, 40721360), (2, 20360680), (4, 10180340), (5, 8144272), (8, 5090170), (10, 4072136), (16, 2545085), (20, 2036068), (40, 1018034), (80, 509017), (521, 78160), (977, 41680), (1042, 39080), (1954, 20840), (2084, 19540), (2605, 15632), (3908, 10420), (4168, 9770), (4885, 8336), (5210, 7816)]