15813040

素因数分解:

$2^4\times 5^1\times {\mathrm{157}}^1\times {\mathrm{1259}}^1$

素因数の和:1429

約数の個数: 40

約数和(自身を含む): 37028880

約数和(自身を除く): 21215840

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 157, 314, 628, 785, 1256, 1259, 1570, 2512, 2518, 3140, 5036, 6280, 6295, 10072, 12560, 12590, 20144, 25180, 50360, 100720, 197663, 395326, 790652, 988315, 1581304, 1976630, 3162608, 3953260, 7906520, 15813040]

約数ペア:

[(1, 15813040), (2, 7906520), (4, 3953260), (5, 3162608), (8, 1976630), (10, 1581304), (16, 988315), (20, 790652), (40, 395326), (80, 197663), (157, 100720), (314, 50360), (628, 25180), (785, 20144), (1256, 12590), (1259, 12560), (1570, 10072), (2512, 6295), (2518, 6280), (3140, 5036)]