199857775

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{83}}^1\times {\mathrm{239}}^1$

素因数の和:376

約数の個数: 48

約数和(自身を含む): 279982080

約数和(自身を除く): 80124305

約数列:

[1, 5, 13, 25, 31, 65, 83, 155, 239, 325, 403, 415, 775, 1079, 1195, 2015, 2075, 2573, 3107, 5395, 5975, 7409, 10075, 12865, 15535, 19837, 26975, 33449, 37045, 64325, 77675, 96317, 99185, 167245, 185225, 257881, 481585, 495925, 614947, 836225, 1289405, 2407925, 3074735, 6447025, 7994311, 15373675, 39971555, 199857775]

約数ペア:

[(1, 199857775), (5, 39971555), (13, 15373675), (25, 7994311), (31, 6447025), (65, 3074735), (83, 2407925), (155, 1289405), (239, 836225), (325, 614947), (403, 495925), (415, 481585), (775, 257881), (1079, 185225), (1195, 167245), (2015, 99185), (2075, 96317), (2573, 77675), (3107, 64325), (5395, 37045), (5975, 33449), (7409, 26975), (10075, 19837), (12865, 15535)]