18973040

素因数分解:

$2^4\times 5^1\times {\mathrm{237163}}^1$

素因数の和:237176

約数の個数: 20

約数和(自身を含む): 44112504

約数和(自身を除く): 25139464

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 237163, 474326, 948652, 1185815, 1897304, 2371630, 3794608, 4743260, 9486520, 18973040]

約数ペア:

[(1, 18973040), (2, 9486520), (4, 4743260), (5, 3794608), (8, 2371630), (10, 1897304), (16, 1185815), (20, 948652), (40, 474326), (80, 237163)]