20199779416

素因数分解:

$2^3\times {\mathrm{43}}^1\times {\mathrm{101}}^1\times {\mathrm{281}}^1\times {\mathrm{2069}}^1$

素因数の和:2500

約数の個数: 64

約数和(自身を含む): 39297376800

約数和(自身を除く): 19097597384

約数列:

[1, 2, 4, 8, 43, 86, 101, 172, 202, 281, 344, 404, 562, 808, 1124, 2069, 2248, 4138, 4343, 8276, 8686, 12083, 16552, 17372, 24166, 28381, 34744, 48332, 56762, 88967, 96664, 113524, 177934, 208969, 227048, 355868, 417938, 581389, 711736, 835876, 1162778, 1220383, 1671752, 2325556, 2440766, 4651112, 4881532, 8985667, 9763064, 17971334, 24999727, 35942668, 49999454, 58720289, 71885336, 99998908, 117440578, 199997816, 234881156, 469762312, 2524972427, 5049944854, 10099889708, 20199779416]

約数ペア:

[(1, 20199779416), (2, 10099889708), (4, 5049944854), (8, 2524972427), (43, 469762312), (86, 234881156), (101, 199997816), (172, 117440578), (202, 99998908), (281, 71885336), (344, 58720289), (404, 49999454), (562, 35942668), (808, 24999727), (1124, 17971334), (2069, 9763064), (2248, 8985667), (4138, 4881532), (4343, 4651112), (8276, 2440766), (8686, 2325556), (12083, 1671752), (16552, 1220383), (17372, 1162778), (24166, 835876), (28381, 711736), (34744, 581389), (48332, 417938), (56762, 355868), (88967, 227048), (96664, 208969), (113524, 177934)]