90688720

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{643}}^1$

素因数の和:740

約数の個数: 80

約数和(自身を含む): 221360832

約数和(自身を除く): 130672112

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 43, 80, 82, 86, 164, 172, 205, 215, 328, 344, 410, 430, 643, 656, 688, 820, 860, 1286, 1640, 1720, 1763, 2572, 3215, 3280, 3440, 3526, 5144, 6430, 7052, 8815, 10288, 12860, 14104, 17630, 25720, 26363, 27649, 28208, 35260, 51440, 52726, 55298, 70520, 105452, 110596, 131815, 138245, 141040, 210904, 221192, 263630, 276490, 421808, 442384, 527260, 552980, 1054520, 1105960, 1133609, 2109040, 2211920, 2267218, 4534436, 5668045, 9068872, 11336090, 18137744, 22672180, 45344360, 90688720]

約数ペア:

[(1, 90688720), (2, 45344360), (4, 22672180), (5, 18137744), (8, 11336090), (10, 9068872), (16, 5668045), (20, 4534436), (40, 2267218), (41, 2211920), (43, 2109040), (80, 1133609), (82, 1105960), (86, 1054520), (164, 552980), (172, 527260), (205, 442384), (215, 421808), (328, 276490), (344, 263630), (410, 221192), (430, 210904), (643, 141040), (656, 138245), (688, 131815), (820, 110596), (860, 105452), (1286, 70520), (1640, 55298), (1720, 52726), (1763, 51440), (2572, 35260), (3215, 28208), (3280, 27649), (3440, 26363), (3526, 25720), (5144, 17630), (6430, 14104), (7052, 12860), (8815, 10288)]