25678420

素因数分解:

$2^2\times 5^1\times {\mathrm{67}}^1\times {\mathrm{19163}}^1$

素因数の和:19239

約数の個数: 24

約数和(自身を含む): 54732384

約数和(自身を除く): 29053964

約数列:

[1, 2, 4, 5, 10, 20, 67, 134, 268, 335, 670, 1340, 19163, 38326, 76652, 95815, 191630, 383260, 1283921, 2567842, 5135684, 6419605, 12839210, 25678420]

約数ペア:

[(1, 25678420), (2, 12839210), (4, 6419605), (5, 5135684), (10, 2567842), (20, 1283921), (67, 383260), (134, 191630), (268, 95815), (335, 76652), (670, 38326), (1340, 19163)]