51578680

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{101}}^1\times {\mathrm{751}}^1$

素因数の和:880

約数の個数: 64

約数和(自身を含む): 124260480

約数和(自身を除く): 72681800

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 101, 136, 170, 202, 340, 404, 505, 680, 751, 808, 1010, 1502, 1717, 2020, 3004, 3434, 3755, 4040, 6008, 6868, 7510, 8585, 12767, 13736, 15020, 17170, 25534, 30040, 34340, 51068, 63835, 68680, 75851, 102136, 127670, 151702, 255340, 303404, 379255, 510680, 606808, 758510, 1289467, 1517020, 2578934, 3034040, 5157868, 6447335, 10315736, 12894670, 25789340, 51578680]

約数ペア:

[(1, 51578680), (2, 25789340), (4, 12894670), (5, 10315736), (8, 6447335), (10, 5157868), (17, 3034040), (20, 2578934), (34, 1517020), (40, 1289467), (68, 758510), (85, 606808), (101, 510680), (136, 379255), (170, 303404), (202, 255340), (340, 151702), (404, 127670), (505, 102136), (680, 75851), (751, 68680), (808, 63835), (1010, 51068), (1502, 34340), (1717, 30040), (2020, 25534), (3004, 17170), (3434, 15020), (3755, 13736), (4040, 12767), (6008, 8585), (6868, 7510)]