20290816

素因数分解:

$2^8\times 7^1\times {\mathrm{13}}^2\times {\mathrm{67}}^1$

素因数の和:116

約数の個数: 108

約数和(自身を含む): 50871072

約数和(自身を除く): 30580256

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 32, 52, 56, 64, 67, 91, 104, 112, 128, 134, 169, 182, 208, 224, 256, 268, 338, 364, 416, 448, 469, 536, 676, 728, 832, 871, 896, 938, 1072, 1183, 1352, 1456, 1664, 1742, 1792, 1876, 2144, 2366, 2704, 2912, 3328, 3484, 3752, 4288, 4732, 5408, 5824, 6097, 6968, 7504, 8576, 9464, 10816, 11323, 11648, 12194, 13936, 15008, 17152, 18928, 21632, 22646, 23296, 24388, 27872, 30016, 37856, 43264, 45292, 48776, 55744, 60032, 75712, 79261, 90584, 97552, 111488, 120064, 151424, 158522, 181168, 195104, 222976, 302848, 317044, 362336, 390208, 634088, 724672, 780416, 1268176, 1449344, 1560832, 2536352, 2898688, 5072704, 10145408, 20290816]

約数ペア:

[(1, 20290816), (2, 10145408), (4, 5072704), (7, 2898688), (8, 2536352), (13, 1560832), (14, 1449344), (16, 1268176), (26, 780416), (28, 724672), (32, 634088), (52, 390208), (56, 362336), (64, 317044), (67, 302848), (91, 222976), (104, 195104), (112, 181168), (128, 158522), (134, 151424), (169, 120064), (182, 111488), (208, 97552), (224, 90584), (256, 79261), (268, 75712), (338, 60032), (364, 55744), (416, 48776), (448, 45292), (469, 43264), (536, 37856), (676, 30016), (728, 27872), (832, 24388), (871, 23296), (896, 22646), (938, 21632), (1072, 18928), (1183, 17152), (1352, 15008), (1456, 13936), (1664, 12194), (1742, 11648), (1792, 11323), (1876, 10816), (2144, 9464), (2366, 8576), (2704, 7504), (2912, 6968), (3328, 6097), (3484, 5824), (3752, 5408), (4288, 4732)]