18607640

素因数分解:

$2^3\times 5^1\times {\mathrm{157}}^1\times {\mathrm{2963}}^1$

素因数の和:3131

約数の個数: 32

約数和(自身を含む): 42148080

約数和(自身を除く): 23540440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 157, 314, 628, 785, 1256, 1570, 2963, 3140, 5926, 6280, 11852, 14815, 23704, 29630, 59260, 118520, 465191, 930382, 1860764, 2325955, 3721528, 4651910, 9303820, 18607640]

約数ペア:

[(1, 18607640), (2, 9303820), (4, 4651910), (5, 3721528), (8, 2325955), (10, 1860764), (20, 930382), (40, 465191), (157, 118520), (314, 59260), (628, 29630), (785, 23704), (1256, 14815), (1570, 11852), (2963, 6280), (3140, 5926)]