20238976

素因数分解:

$2^7\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{131}}^1$

素因数の和:233

約数の個数: 64

約数和(自身を含む): 43623360

約数和(自身を除く): 23384384

約数列:

[1, 2, 4, 8, 16, 17, 32, 34, 64, 68, 71, 128, 131, 136, 142, 262, 272, 284, 524, 544, 568, 1048, 1088, 1136, 1207, 2096, 2176, 2227, 2272, 2414, 4192, 4454, 4544, 4828, 8384, 8908, 9088, 9301, 9656, 16768, 17816, 18602, 19312, 35632, 37204, 38624, 71264, 74408, 77248, 142528, 148816, 154496, 158117, 285056, 297632, 316234, 595264, 632468, 1190528, 1264936, 2529872, 5059744, 10119488, 20238976]

約数ペア:

[(1, 20238976), (2, 10119488), (4, 5059744), (8, 2529872), (16, 1264936), (17, 1190528), (32, 632468), (34, 595264), (64, 316234), (68, 297632), (71, 285056), (128, 158117), (131, 154496), (136, 148816), (142, 142528), (262, 77248), (272, 74408), (284, 71264), (524, 38624), (544, 37204), (568, 35632), (1048, 19312), (1088, 18602), (1136, 17816), (1207, 16768), (2096, 9656), (2176, 9301), (2227, 9088), (2272, 8908), (2414, 8384), (4192, 4828), (4454, 4544)]