20571648

素因数分解:

$2^9\times 3^1\times {\mathrm{59}}^1\times {\mathrm{227}}^1$

素因数の和:307

約数の個数: 80

約数和(自身を含む): 55978560

約数和(自身を除く): 35406912

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, 59, 64, 96, 118, 128, 177, 192, 227, 236, 256, 354, 384, 454, 472, 512, 681, 708, 768, 908, 944, 1362, 1416, 1536, 1816, 1888, 2724, 2832, 3632, 3776, 5448, 5664, 7264, 7552, 10896, 11328, 13393, 14528, 15104, 21792, 22656, 26786, 29056, 30208, 40179, 43584, 45312, 53572, 58112, 80358, 87168, 90624, 107144, 116224, 160716, 174336, 214288, 321432, 348672, 428576, 642864, 857152, 1285728, 1714304, 2571456, 3428608, 5142912, 6857216, 10285824, 20571648]

約数ペア:

[(1, 20571648), (2, 10285824), (3, 6857216), (4, 5142912), (6, 3428608), (8, 2571456), (12, 1714304), (16, 1285728), (24, 857152), (32, 642864), (48, 428576), (59, 348672), (64, 321432), (96, 214288), (118, 174336), (128, 160716), (177, 116224), (192, 107144), (227, 90624), (236, 87168), (256, 80358), (354, 58112), (384, 53572), (454, 45312), (472, 43584), (512, 40179), (681, 30208), (708, 29056), (768, 26786), (908, 22656), (944, 21792), (1362, 15104), (1416, 14528), (1536, 13393), (1816, 11328), (1888, 10896), (2724, 7552), (2832, 7264), (3632, 5664), (3776, 5448)]