73978940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{11243}}^1$

素因数の和:11306

約数の個数: 48

約数和(自身を含む): 181343232

約数和(自身を除く): 107364292

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 47, 70, 94, 140, 188, 235, 329, 470, 658, 940, 1316, 1645, 3290, 6580, 11243, 22486, 44972, 56215, 78701, 112430, 157402, 224860, 314804, 393505, 528421, 787010, 1056842, 1574020, 2113684, 2642105, 3698947, 5284210, 7397894, 10568420, 14795788, 18494735, 36989470, 73978940]

約数ペア:

[(1, 73978940), (2, 36989470), (4, 18494735), (5, 14795788), (7, 10568420), (10, 7397894), (14, 5284210), (20, 3698947), (28, 2642105), (35, 2113684), (47, 1574020), (70, 1056842), (94, 787010), (140, 528421), (188, 393505), (235, 314804), (329, 224860), (470, 157402), (658, 112430), (940, 78701), (1316, 56215), (1645, 44972), (3290, 22486), (6580, 11243)]