201990904784

素因数分解:

$2^4\times {\mathrm{79}}^1\times {\mathrm{7817}}^1\times {\mathrm{20443}}^1$

素因数の和:28347

約数の個数: 40

約数和(自身を含む): 396381356160

約数和(自身を除く): 194390451376

約数列:

[1, 2, 4, 8, 16, 79, 158, 316, 632, 1264, 7817, 15634, 20443, 31268, 40886, 62536, 81772, 125072, 163544, 327088, 617543, 1235086, 1614997, 2470172, 3229994, 4940344, 6459988, 9880688, 12919976, 25839952, 159802931, 319605862, 639211724, 1278423448, 2556846896, 12624431549, 25248863098, 50497726196, 100995452392, 201990904784]

約数ペア:

[(1, 201990904784), (2, 100995452392), (4, 50497726196), (8, 25248863098), (16, 12624431549), (79, 2556846896), (158, 1278423448), (316, 639211724), (632, 319605862), (1264, 159802931), (7817, 25839952), (15634, 12919976), (20443, 9880688), (31268, 6459988), (40886, 4940344), (62536, 3229994), (81772, 2470172), (125072, 1614997), (163544, 1235086), (327088, 617543)]