12499840

素因数分解:

$2^7\times 5^1\times {\mathrm{19531}}^1$

素因数の和:19550

約数の個数: 32

約数和(自身を含む): 29883960

約数和(自身を除く): 17384120

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 19531, 39062, 78124, 97655, 156248, 195310, 312496, 390620, 624992, 781240, 1249984, 1562480, 2499968, 3124960, 6249920, 12499840]

約数ペア:

[(1, 12499840), (2, 6249920), (4, 3124960), (5, 2499968), (8, 1562480), (10, 1249984), (16, 781240), (20, 624992), (32, 390620), (40, 312496), (64, 195310), (80, 156248), (128, 97655), (160, 78124), (320, 39062), (640, 19531)]