25239620

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{1297}}^1$

素因数の和:1452

約数の個数: 48

約数和(自身を含む): 61057920

約数和(自身を除く): 35818300

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 139, 140, 278, 556, 695, 973, 1297, 1390, 1946, 2594, 2780, 3892, 4865, 5188, 6485, 9079, 9730, 12970, 18158, 19460, 25940, 36316, 45395, 90790, 180283, 181580, 360566, 721132, 901415, 1261981, 1802830, 2523962, 3605660, 5047924, 6309905, 12619810, 25239620]

約数ペア:

[(1, 25239620), (2, 12619810), (4, 6309905), (5, 5047924), (7, 3605660), (10, 2523962), (14, 1802830), (20, 1261981), (28, 901415), (35, 721132), (70, 360566), (139, 181580), (140, 180283), (278, 90790), (556, 45395), (695, 36316), (973, 25940), (1297, 19460), (1390, 18158), (1946, 12970), (2594, 9730), (2780, 9079), (3892, 6485), (4865, 5188)]