20180778040

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{1213}}^1\times {\mathrm{13417}}^1$

素因数の和:14672

約数の個数: 64

約数和(自身を含む): 46913621760

約数和(自身を除く): 26732843720

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1213, 1240, 2426, 4852, 6065, 9704, 12130, 13417, 24260, 26834, 37603, 48520, 53668, 67085, 75206, 107336, 134170, 150412, 188015, 268340, 300824, 376030, 415927, 536680, 752060, 831854, 1504120, 1663708, 2079635, 3327416, 4159270, 8318540, 16274821, 16637080, 32549642, 65099284, 81374105, 130198568, 162748210, 325496420, 504519451, 650992840, 1009038902, 2018077804, 2522597255, 4036155608, 5045194510, 10090389020, 20180778040]

約数ペア:

[(1, 20180778040), (2, 10090389020), (4, 5045194510), (5, 4036155608), (8, 2522597255), (10, 2018077804), (20, 1009038902), (31, 650992840), (40, 504519451), (62, 325496420), (124, 162748210), (155, 130198568), (248, 81374105), (310, 65099284), (620, 32549642), (1213, 16637080), (1240, 16274821), (2426, 8318540), (4852, 4159270), (6065, 3327416), (9704, 2079635), (12130, 1663708), (13417, 1504120), (24260, 831854), (26834, 752060), (37603, 536680), (48520, 415927), (53668, 376030), (67085, 300824), (75206, 268340), (107336, 188015), (134170, 150412)]