10220720

素因数分解:

$2^4\times 5^1\times {\mathrm{251}}^1\times {\mathrm{509}}^1$

素因数の和:773

約数の個数: 40

約数和(自身を含む): 23904720

約数和(自身を除く): 13684000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 251, 502, 509, 1004, 1018, 1255, 2008, 2036, 2510, 2545, 4016, 4072, 5020, 5090, 8144, 10040, 10180, 20080, 20360, 40720, 127759, 255518, 511036, 638795, 1022072, 1277590, 2044144, 2555180, 5110360, 10220720]

約数ペア:

[(1, 10220720), (2, 5110360), (4, 2555180), (5, 2044144), (8, 1277590), (10, 1022072), (16, 638795), (20, 511036), (40, 255518), (80, 127759), (251, 40720), (502, 20360), (509, 20080), (1004, 10180), (1018, 10040), (1255, 8144), (2008, 5090), (2036, 5020), (2510, 4072), (2545, 4016)]