20522475

素因数分解:

$3^2\times 5^2\times {\mathrm{197}}^1\times {\mathrm{463}}^1$

素因数の和:676

約数の個数: 36

約数和(自身を含む): 37024416

約数和(自身を除く): 16501941

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 197, 225, 463, 591, 985, 1389, 1773, 2315, 2955, 4167, 4925, 6945, 8865, 11575, 14775, 20835, 34725, 44325, 91211, 104175, 273633, 456055, 820899, 1368165, 2280275, 4104495, 6840825, 20522475]

約数ペア:

[(1, 20522475), (3, 6840825), (5, 4104495), (9, 2280275), (15, 1368165), (25, 820899), (45, 456055), (75, 273633), (197, 104175), (225, 91211), (463, 44325), (591, 34725), (985, 20835), (1389, 14775), (1773, 11575), (2315, 8865), (2955, 6945), (4167, 4925)]