71545040

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{251}}^1\times {\mathrm{509}}^1$

素因数の和:780

約数の個数: 80

約数和(自身を含む): 191237760

約数和(自身を除く): 119692720

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 251, 280, 502, 509, 560, 1004, 1018, 1255, 1757, 2008, 2036, 2510, 2545, 3514, 3563, 4016, 4072, 5020, 5090, 7028, 7126, 8144, 8785, 10040, 10180, 14056, 14252, 17570, 17815, 20080, 20360, 28112, 28504, 35140, 35630, 40720, 57008, 70280, 71260, 127759, 140560, 142520, 255518, 285040, 511036, 638795, 894313, 1022072, 1277590, 1788626, 2044144, 2555180, 3577252, 4471565, 5110360, 7154504, 8943130, 10220720, 14309008, 17886260, 35772520, 71545040]

約数ペア:

[(1, 71545040), (2, 35772520), (4, 17886260), (5, 14309008), (7, 10220720), (8, 8943130), (10, 7154504), (14, 5110360), (16, 4471565), (20, 3577252), (28, 2555180), (35, 2044144), (40, 1788626), (56, 1277590), (70, 1022072), (80, 894313), (112, 638795), (140, 511036), (251, 285040), (280, 255518), (502, 142520), (509, 140560), (560, 127759), (1004, 71260), (1018, 70280), (1255, 57008), (1757, 40720), (2008, 35630), (2036, 35140), (2510, 28504), (2545, 28112), (3514, 20360), (3563, 20080), (4016, 17815), (4072, 17570), (5020, 14252), (5090, 14056), (7028, 10180), (7126, 10040), (8144, 8785)]