20851256320

素因数分解:

$2^{10}\times 5^1\times {\mathrm{211}}^1\times {\mathrm{19301}}^1$

素因数の和:19537

約数の個数: 88

約数和(自身を含む): 50258238768

約数和(自身を除く): 29406982448

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 211, 256, 320, 422, 512, 640, 844, 1024, 1055, 1280, 1688, 2110, 2560, 3376, 4220, 5120, 6752, 8440, 13504, 16880, 19301, 27008, 33760, 38602, 54016, 67520, 77204, 96505, 108032, 135040, 154408, 193010, 216064, 270080, 308816, 386020, 540160, 617632, 772040, 1080320, 1235264, 1544080, 2470528, 3088160, 4072511, 4941056, 6176320, 8145022, 9882112, 12352640, 16290044, 19764224, 20362555, 24705280, 32580088, 40725110, 49410560, 65160176, 81450220, 98821120, 130320352, 162900440, 260640704, 325800880, 521281408, 651601760, 1042562816, 1303203520, 2085125632, 2606407040, 4170251264, 5212814080, 10425628160, 20851256320]

約数ペア:

[(1, 20851256320), (2, 10425628160), (4, 5212814080), (5, 4170251264), (8, 2606407040), (10, 2085125632), (16, 1303203520), (20, 1042562816), (32, 651601760), (40, 521281408), (64, 325800880), (80, 260640704), (128, 162900440), (160, 130320352), (211, 98821120), (256, 81450220), (320, 65160176), (422, 49410560), (512, 40725110), (640, 32580088), (844, 24705280), (1024, 20362555), (1055, 19764224), (1280, 16290044), (1688, 12352640), (2110, 9882112), (2560, 8145022), (3376, 6176320), (4220, 4941056), (5120, 4072511), (6752, 3088160), (8440, 2470528), (13504, 1544080), (16880, 1235264), (19301, 1080320), (27008, 772040), (33760, 617632), (38602, 540160), (54016, 386020), (67520, 308816), (77204, 270080), (96505, 216064), (108032, 193010), (135040, 154408)]