20333320

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{101}}^1\times {\mathrm{719}}^1$

素因数の和:838

約数の個数: 64

約数和(自身を含む): 52876800

約数和(自身を除く): 32543480

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 101, 140, 202, 280, 404, 505, 707, 719, 808, 1010, 1414, 1438, 2020, 2828, 2876, 3535, 3595, 4040, 5033, 5656, 5752, 7070, 7190, 10066, 14140, 14380, 20132, 25165, 28280, 28760, 40264, 50330, 72619, 100660, 145238, 201320, 290476, 363095, 508333, 580952, 726190, 1016666, 1452380, 2033332, 2541665, 2904760, 4066664, 5083330, 10166660, 20333320]

約数ペア:

[(1, 20333320), (2, 10166660), (4, 5083330), (5, 4066664), (7, 2904760), (8, 2541665), (10, 2033332), (14, 1452380), (20, 1016666), (28, 726190), (35, 580952), (40, 508333), (56, 363095), (70, 290476), (101, 201320), (140, 145238), (202, 100660), (280, 72619), (404, 50330), (505, 40264), (707, 28760), (719, 28280), (808, 25165), (1010, 20132), (1414, 14380), (1438, 14140), (2020, 10066), (2828, 7190), (2876, 7070), (3535, 5752), (3595, 5656), (4040, 5033)]