82561360

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{379}}^1\times {\mathrm{389}}^1$

素因数の和:788

約数の個数: 80

約数和(自身を含む): 220521600

約数和(自身を除く): 137960240

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 379, 389, 560, 758, 778, 1516, 1556, 1895, 1945, 2653, 2723, 3032, 3112, 3790, 3890, 5306, 5446, 6064, 6224, 7580, 7780, 10612, 10892, 13265, 13615, 15160, 15560, 21224, 21784, 26530, 27230, 30320, 31120, 42448, 43568, 53060, 54460, 106120, 108920, 147431, 212240, 217840, 294862, 589724, 737155, 1032017, 1179448, 1474310, 2064034, 2358896, 2948620, 4128068, 5160085, 5897240, 8256136, 10320170, 11794480, 16512272, 20640340, 41280680, 82561360]

約数ペア:

[(1, 82561360), (2, 41280680), (4, 20640340), (5, 16512272), (7, 11794480), (8, 10320170), (10, 8256136), (14, 5897240), (16, 5160085), (20, 4128068), (28, 2948620), (35, 2358896), (40, 2064034), (56, 1474310), (70, 1179448), (80, 1032017), (112, 737155), (140, 589724), (280, 294862), (379, 217840), (389, 212240), (560, 147431), (758, 108920), (778, 106120), (1516, 54460), (1556, 53060), (1895, 43568), (1945, 42448), (2653, 31120), (2723, 30320), (3032, 27230), (3112, 26530), (3790, 21784), (3890, 21224), (5306, 15560), (5446, 15160), (6064, 13615), (6224, 13265), (7580, 10892), (7780, 10612)]