25398040

素因数分解:

$2^3\times 5^1\times {\mathrm{317}}^1\times {\mathrm{2003}}^1$

素因数の和:2331

約数の個数: 32

約数和(自身を含む): 57354480

約数和(自身を除く): 31956440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 317, 634, 1268, 1585, 2003, 2536, 3170, 4006, 6340, 8012, 10015, 12680, 16024, 20030, 40060, 80120, 634951, 1269902, 2539804, 3174755, 5079608, 6349510, 12699020, 25398040]

約数ペア:

[(1, 25398040), (2, 12699020), (4, 6349510), (5, 5079608), (8, 3174755), (10, 2539804), (20, 1269902), (40, 634951), (317, 80120), (634, 40060), (1268, 20030), (1585, 16024), (2003, 12680), (2536, 10015), (3170, 8012), (4006, 6340)]