2019020725

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{233}}^1\times {\mathrm{20389}}^1$

素因数の和:20649

約数の個数: 24

約数和(自身を含む): 2662363080

約数和(自身を除く): 643342355

約数列:

[1, 5, 17, 25, 85, 233, 425, 1165, 3961, 5825, 19805, 20389, 99025, 101945, 346613, 509725, 1733065, 4750637, 8665325, 23753185, 80760829, 118765925, 403804145, 2019020725]

約数ペア:

[(1, 2019020725), (5, 403804145), (17, 118765925), (25, 80760829), (85, 23753185), (233, 8665325), (425, 4750637), (1165, 1733065), (3961, 509725), (5825, 346613), (19805, 101945), (20389, 99025)]