20737641320

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{1625207}}^1$

素因数の和:1625258

約数の個数: 64

約数和(自身を含む): 52656739200

約数和(自身を除く): 31919097880

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 29, 40, 44, 55, 58, 88, 110, 116, 145, 220, 232, 290, 319, 440, 580, 638, 1160, 1276, 1595, 2552, 3190, 6380, 12760, 1625207, 3250414, 6500828, 8126035, 13001656, 16252070, 17877277, 32504140, 35754554, 47131003, 65008280, 71509108, 89386385, 94262006, 143018216, 178772770, 188524012, 235655015, 357545540, 377048024, 471310030, 518441033, 715091080, 942620060, 1036882066, 1885240120, 2073764132, 2592205165, 4147528264, 5184410330, 10368820660, 20737641320]

約数ペア:

[(1, 20737641320), (2, 10368820660), (4, 5184410330), (5, 4147528264), (8, 2592205165), (10, 2073764132), (11, 1885240120), (20, 1036882066), (22, 942620060), (29, 715091080), (40, 518441033), (44, 471310030), (55, 377048024), (58, 357545540), (88, 235655015), (110, 188524012), (116, 178772770), (145, 143018216), (220, 94262006), (232, 89386385), (290, 71509108), (319, 65008280), (440, 47131003), (580, 35754554), (638, 32504140), (1160, 17877277), (1276, 16252070), (1595, 13001656), (2552, 8126035), (3190, 6500828), (6380, 3250414), (12760, 1625207)]