20400148

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{181}}^1\times {\mathrm{1483}}^1$

素因数の和:1687

約数の個数: 24

約数和(自身を含む): 37812320

約数和(自身を除く): 17412172

約数列:

[1, 2, 4, 19, 38, 76, 181, 362, 724, 1483, 2966, 3439, 5932, 6878, 13756, 28177, 56354, 112708, 268423, 536846, 1073692, 5100037, 10200074, 20400148]

約数ペア:

[(1, 20400148), (2, 10200074), (4, 5100037), (19, 1073692), (38, 536846), (76, 268423), (181, 112708), (362, 56354), (724, 28177), (1483, 13756), (2966, 6878), (3439, 5932)]