30702920

素因数分解:

$2^3\times 5^1\times {\mathrm{157}}^1\times {\mathrm{4889}}^1$

素因数の和:5057

約数の個数: 32

約数和(自身を含む): 69535800

約数和(自身を除く): 38832880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 157, 314, 628, 785, 1256, 1570, 3140, 4889, 6280, 9778, 19556, 24445, 39112, 48890, 97780, 195560, 767573, 1535146, 3070292, 3837865, 6140584, 7675730, 15351460, 30702920]

約数ペア:

[(1, 30702920), (2, 15351460), (4, 7675730), (5, 6140584), (8, 3837865), (10, 3070292), (20, 1535146), (40, 767573), (157, 195560), (314, 97780), (628, 48890), (785, 39112), (1256, 24445), (1570, 19556), (3140, 9778), (4889, 6280)]