2021020520

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{617}}^1\times {\mathrm{4817}}^1$

素因数の和:5462

約数の個数: 64

約数和(自身を含む): 4823588880

約数和(自身を除く): 2802568360

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 617, 680, 1234, 2468, 3085, 4817, 4936, 6170, 9634, 10489, 12340, 19268, 20978, 24085, 24680, 38536, 41956, 48170, 52445, 81889, 83912, 96340, 104890, 163778, 192680, 209780, 327556, 409445, 419560, 655112, 818890, 1637780, 2972089, 3275560, 5944178, 11888356, 14860445, 23776712, 29720890, 50525513, 59441780, 101051026, 118883560, 202102052, 252627565, 404204104, 505255130, 1010510260, 2021020520]

約数ペア:

[(1, 2021020520), (2, 1010510260), (4, 505255130), (5, 404204104), (8, 252627565), (10, 202102052), (17, 118883560), (20, 101051026), (34, 59441780), (40, 50525513), (68, 29720890), (85, 23776712), (136, 14860445), (170, 11888356), (340, 5944178), (617, 3275560), (680, 2972089), (1234, 1637780), (2468, 818890), (3085, 655112), (4817, 419560), (4936, 409445), (6170, 327556), (9634, 209780), (10489, 192680), (12340, 163778), (19268, 104890), (20978, 96340), (24085, 83912), (24680, 81889), (38536, 52445), (41956, 48170)]