13999420

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{53}}^1\times {\mathrm{281}}^1$

素因数の和:390

約数の個数: 48

約数和(自身を含む): 30699648

約数和(自身を除く): 16700228

約数列:

[1, 2, 4, 5, 10, 20, 47, 53, 94, 106, 188, 212, 235, 265, 281, 470, 530, 562, 940, 1060, 1124, 1405, 2491, 2810, 4982, 5620, 9964, 12455, 13207, 14893, 24910, 26414, 29786, 49820, 52828, 59572, 66035, 74465, 132070, 148930, 264140, 297860, 699971, 1399942, 2799884, 3499855, 6999710, 13999420]

約数ペア:

[(1, 13999420), (2, 6999710), (4, 3499855), (5, 2799884), (10, 1399942), (20, 699971), (47, 297860), (53, 264140), (94, 148930), (106, 132070), (188, 74465), (212, 66035), (235, 59572), (265, 52828), (281, 49820), (470, 29786), (530, 26414), (562, 24910), (940, 14893), (1060, 13207), (1124, 12455), (1405, 9964), (2491, 5620), (2810, 4982)]