18673670240

素因数分解:

$2^5\times 5^1\times {\mathrm{71}}^1\times {\mathrm{1643809}}^1$

素因数の和:1643895

約数の個数: 48

約数和(自身を含む): 44737932960

約数和(自身を除く): 26064262720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 71, 80, 142, 160, 284, 355, 568, 710, 1136, 1420, 2272, 2840, 5680, 11360, 1643809, 3287618, 6575236, 8219045, 13150472, 16438090, 26300944, 32876180, 52601888, 65752360, 116710439, 131504720, 233420878, 263009440, 466841756, 583552195, 933683512, 1167104390, 1867367024, 2334208780, 3734734048, 4668417560, 9336835120, 18673670240]

約数ペア:

[(1, 18673670240), (2, 9336835120), (4, 4668417560), (5, 3734734048), (8, 2334208780), (10, 1867367024), (16, 1167104390), (20, 933683512), (32, 583552195), (40, 466841756), (71, 263009440), (80, 233420878), (142, 131504720), (160, 116710439), (284, 65752360), (355, 52601888), (568, 32876180), (710, 26300944), (1136, 16438090), (1420, 13150472), (2272, 8219045), (2840, 6575236), (5680, 3287618), (11360, 1643809)]