25121720

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{48311}}^1$

素因数の和:48335

約数の個数: 32

約数和(自身を含む): 60873120

約数和(自身を除く): 35751400

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 48311, 96622, 193244, 241555, 386488, 483110, 628043, 966220, 1256086, 1932440, 2512172, 3140215, 5024344, 6280430, 12560860, 25121720]

約数ペア:

[(1, 25121720), (2, 12560860), (4, 6280430), (5, 5024344), (8, 3140215), (10, 2512172), (13, 1932440), (20, 1256086), (26, 966220), (40, 628043), (52, 483110), (65, 386488), (104, 241555), (130, 193244), (260, 96622), (520, 48311)]