20212160

素因数分解:

$2^6\times 5^1\times {\mathrm{83}}^1\times {\mathrm{761}}^1$

素因数の和:861

約数の個数: 56

約数和(自身を含む): 48774096

約数和(自身を除く): 28561936

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 83, 160, 166, 320, 332, 415, 664, 761, 830, 1328, 1522, 1660, 2656, 3044, 3320, 3805, 5312, 6088, 6640, 7610, 12176, 13280, 15220, 24352, 26560, 30440, 48704, 60880, 63163, 121760, 126326, 243520, 252652, 315815, 505304, 631630, 1010608, 1263260, 2021216, 2526520, 4042432, 5053040, 10106080, 20212160]

約数ペア:

[(1, 20212160), (2, 10106080), (4, 5053040), (5, 4042432), (8, 2526520), (10, 2021216), (16, 1263260), (20, 1010608), (32, 631630), (40, 505304), (64, 315815), (80, 252652), (83, 243520), (160, 126326), (166, 121760), (320, 63163), (332, 60880), (415, 48704), (664, 30440), (761, 26560), (830, 24352), (1328, 15220), (1522, 13280), (1660, 12176), (2656, 7610), (3044, 6640), (3320, 6088), (3805, 5312)]