20490288

素因数分解:

$2^4\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{4691}}^1$

素因数の和:4722

約数の個数: 80

約数和(自身を含む): 65162496

約数和(自身を除く): 44672208

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 13, 14, 16, 21, 24, 26, 28, 39, 42, 48, 52, 56, 78, 84, 91, 104, 112, 156, 168, 182, 208, 273, 312, 336, 364, 546, 624, 728, 1092, 1456, 2184, 4368, 4691, 9382, 14073, 18764, 28146, 32837, 37528, 56292, 60983, 65674, 75056, 98511, 112584, 121966, 131348, 182949, 197022, 225168, 243932, 262696, 365898, 394044, 426881, 487864, 525392, 731796, 788088, 853762, 975728, 1280643, 1463592, 1576176, 1707524, 2561286, 2927184, 3415048, 5122572, 6830096, 10245144, 20490288]

約数ペア:

[(1, 20490288), (2, 10245144), (3, 6830096), (4, 5122572), (6, 3415048), (7, 2927184), (8, 2561286), (12, 1707524), (13, 1576176), (14, 1463592), (16, 1280643), (21, 975728), (24, 853762), (26, 788088), (28, 731796), (39, 525392), (42, 487864), (48, 426881), (52, 394044), (56, 365898), (78, 262696), (84, 243932), (91, 225168), (104, 197022), (112, 182949), (156, 131348), (168, 121966), (182, 112584), (208, 98511), (273, 75056), (312, 65674), (336, 60983), (364, 56292), (546, 37528), (624, 32837), (728, 28146), (1092, 18764), (1456, 14073), (2184, 9382), (4368, 4691)]