28558725

素因数分解:

$3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{1723}}^1$

素因数の和:1766

約数の個数: 48

約数和(自身を含む): 53871552

約数和(自身を除く): 25312827

約数列:

[1, 3, 5, 13, 15, 17, 25, 39, 51, 65, 75, 85, 195, 221, 255, 325, 425, 663, 975, 1105, 1275, 1723, 3315, 5169, 5525, 8615, 16575, 22399, 25845, 29291, 43075, 67197, 87873, 111995, 129225, 146455, 335985, 380783, 439365, 559975, 732275, 1142349, 1679925, 1903915, 2196825, 5711745, 9519575, 28558725]

約数ペア:

[(1, 28558725), (3, 9519575), (5, 5711745), (13, 2196825), (15, 1903915), (17, 1679925), (25, 1142349), (39, 732275), (51, 559975), (65, 439365), (75, 380783), (85, 335985), (195, 146455), (221, 129225), (255, 111995), (325, 87873), (425, 67197), (663, 43075), (975, 29291), (1105, 25845), (1275, 22399), (1723, 16575), (3315, 8615), (5169, 5525)]