247907240

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{885383}}^1$

素因数の和:885401

約数の個数: 32

約数和(自身を含む): 637476480

約数和(自身を除く): 389569240

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 885383, 1770766, 3541532, 4426915, 6197681, 7083064, 8853830, 12395362, 17707660, 24790724, 30988405, 35415320, 49581448, 61976810, 123953620, 247907240]

約数ペア:

[(1, 247907240), (2, 123953620), (4, 61976810), (5, 49581448), (7, 35415320), (8, 30988405), (10, 24790724), (14, 17707660), (20, 12395362), (28, 8853830), (35, 7083064), (40, 6197681), (56, 4426915), (70, 3541532), (140, 1770766), (280, 885383)]