20889056

素因数分解:

$2^5\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1$

素因数の和:136

約数の個数: 96

約数和(自身を含む): 47900160

約数和(自身を除く): 27011104

約数列:

[1, 2, 4, 8, 16, 17, 19, 32, 34, 38, 43, 47, 68, 76, 86, 94, 136, 152, 172, 188, 272, 304, 323, 344, 376, 544, 608, 646, 688, 731, 752, 799, 817, 893, 1292, 1376, 1462, 1504, 1598, 1634, 1786, 2021, 2584, 2924, 3196, 3268, 3572, 4042, 5168, 5848, 6392, 6536, 7144, 8084, 10336, 11696, 12784, 13072, 13889, 14288, 15181, 16168, 23392, 25568, 26144, 27778, 28576, 30362, 32336, 34357, 38399, 55556, 60724, 64672, 68714, 76798, 111112, 121448, 137428, 153596, 222224, 242896, 274856, 307192, 444448, 485792, 549712, 614384, 652783, 1099424, 1228768, 1305566, 2611132, 5222264, 10444528, 20889056]

約数ペア:

[(1, 20889056), (2, 10444528), (4, 5222264), (8, 2611132), (16, 1305566), (17, 1228768), (19, 1099424), (32, 652783), (34, 614384), (38, 549712), (43, 485792), (47, 444448), (68, 307192), (76, 274856), (86, 242896), (94, 222224), (136, 153596), (152, 137428), (172, 121448), (188, 111112), (272, 76798), (304, 68714), (323, 64672), (344, 60724), (376, 55556), (544, 38399), (608, 34357), (646, 32336), (688, 30362), (731, 28576), (752, 27778), (799, 26144), (817, 25568), (893, 23392), (1292, 16168), (1376, 15181), (1462, 14288), (1504, 13889), (1598, 13072), (1634, 12784), (1786, 11696), (2021, 10336), (2584, 8084), (2924, 7144), (3196, 6536), (3268, 6392), (3572, 5848), (4042, 5168)]