20125101488

素因数分解:

$2^4\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{551917}}^1$

素因数の和:552021

約数の個数: 40

約数和(自身を含む): 40652072208

約数和(自身を除く): 20526970720

約数列:

[1, 2, 4, 8, 16, 43, 53, 86, 106, 172, 212, 344, 424, 688, 848, 2279, 4558, 9116, 18232, 36464, 551917, 1103834, 2207668, 4415336, 8830672, 23732431, 29251601, 47464862, 58503202, 94929724, 117006404, 189859448, 234012808, 379718896, 468025616, 1257818843, 2515637686, 5031275372, 10062550744, 20125101488]

約数ペア:

[(1, 20125101488), (2, 10062550744), (4, 5031275372), (8, 2515637686), (16, 1257818843), (43, 468025616), (53, 379718896), (86, 234012808), (106, 189859448), (172, 117006404), (212, 94929724), (344, 58503202), (424, 47464862), (688, 29251601), (848, 23732431), (2279, 8830672), (4558, 4415336), (9116, 2207668), (18232, 1103834), (36464, 551917)]