51305620

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{83}}^1\times {\mathrm{997}}^1$

素因数の和:1120

約数の個数: 48

約数和(自身を含む): 112670208

約数和(自身を除く): 61364588

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 83, 124, 155, 166, 310, 332, 415, 620, 830, 997, 1660, 1994, 2573, 3988, 4985, 5146, 9970, 10292, 12865, 19940, 25730, 30907, 51460, 61814, 82751, 123628, 154535, 165502, 309070, 331004, 413755, 618140, 827510, 1655020, 2565281, 5130562, 10261124, 12826405, 25652810, 51305620]

約数ペア:

[(1, 51305620), (2, 25652810), (4, 12826405), (5, 10261124), (10, 5130562), (20, 2565281), (31, 1655020), (62, 827510), (83, 618140), (124, 413755), (155, 331004), (166, 309070), (310, 165502), (332, 154535), (415, 123628), (620, 82751), (830, 61814), (997, 51460), (1660, 30907), (1994, 25730), (2573, 19940), (3988, 12865), (4985, 10292), (5146, 9970)]