891760

素因数分解:

$2^4\times 5^1\times {\mathrm{71}}^1\times {\mathrm{157}}^1$

素因数の和:241

約数の個数: 40

約数和(自身を含む): 2115936

約数和(自身を除く): 1224176

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 71, 80, 142, 157, 284, 314, 355, 568, 628, 710, 785, 1136, 1256, 1420, 1570, 2512, 2840, 3140, 5680, 6280, 11147, 12560, 22294, 44588, 55735, 89176, 111470, 178352, 222940, 445880, 891760]

約数ペア:

[(1, 891760), (2, 445880), (4, 222940), (5, 178352), (8, 111470), (10, 89176), (16, 55735), (20, 44588), (40, 22294), (71, 12560), (80, 11147), (142, 6280), (157, 5680), (284, 3140), (314, 2840), (355, 2512), (568, 1570), (628, 1420), (710, 1256), (785, 1136)]