20911488

素因数分解:

$2^7\times 3^1\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{71}}^1$

素因数の和:160

約数の個数: 128

約数和(自身を含む): 61689600

約数和(自身を除く): 40778112

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 24, 26, 32, 39, 48, 52, 59, 64, 71, 78, 96, 104, 118, 128, 142, 156, 177, 192, 208, 213, 236, 284, 312, 354, 384, 416, 426, 472, 568, 624, 708, 767, 832, 852, 923, 944, 1136, 1248, 1416, 1534, 1664, 1704, 1846, 1888, 2272, 2301, 2496, 2769, 2832, 3068, 3408, 3692, 3776, 4189, 4544, 4602, 4992, 5538, 5664, 6136, 6816, 7384, 7552, 8378, 9088, 9204, 11076, 11328, 12272, 12567, 13632, 14768, 16756, 18408, 22152, 22656, 24544, 25134, 27264, 29536, 33512, 36816, 44304, 49088, 50268, 54457, 59072, 67024, 73632, 88608, 98176, 100536, 108914, 118144, 134048, 147264, 163371, 177216, 201072, 217828, 268096, 294528, 326742, 354432, 402144, 435656, 536192, 653484, 804288, 871312, 1306968, 1608576, 1742624, 2613936, 3485248, 5227872, 6970496, 10455744, 20911488]

約数ペア:

[(1, 20911488), (2, 10455744), (3, 6970496), (4, 5227872), (6, 3485248), (8, 2613936), (12, 1742624), (13, 1608576), (16, 1306968), (24, 871312), (26, 804288), (32, 653484), (39, 536192), (48, 435656), (52, 402144), (59, 354432), (64, 326742), (71, 294528), (78, 268096), (96, 217828), (104, 201072), (118, 177216), (128, 163371), (142, 147264), (156, 134048), (177, 118144), (192, 108914), (208, 100536), (213, 98176), (236, 88608), (284, 73632), (312, 67024), (354, 59072), (384, 54457), (416, 50268), (426, 49088), (472, 44304), (568, 36816), (624, 33512), (708, 29536), (767, 27264), (832, 25134), (852, 24544), (923, 22656), (944, 22152), (1136, 18408), (1248, 16756), (1416, 14768), (1534, 13632), (1664, 12567), (1704, 12272), (1846, 11328), (1888, 11076), (2272, 9204), (2301, 9088), (2496, 8378), (2769, 7552), (2832, 7384), (3068, 6816), (3408, 6136), (3692, 5664), (3776, 5538), (4189, 4992), (4544, 4602)]