20813896

素因数分解:

$2^3\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{89}}^1$

素因数の和:190

約数の個数: 64

約数和(自身を含む): 43545600

約数和(自身を除く): 22731704

約数列:

[1, 2, 4, 8, 23, 31, 41, 46, 62, 82, 89, 92, 124, 164, 178, 184, 248, 328, 356, 712, 713, 943, 1271, 1426, 1886, 2047, 2542, 2759, 2852, 3649, 3772, 4094, 5084, 5518, 5704, 7298, 7544, 8188, 10168, 11036, 14596, 16376, 22072, 29192, 29233, 58466, 63457, 83927, 113119, 116932, 126914, 167854, 226238, 233864, 253828, 335708, 452476, 507656, 671416, 904952, 2601737, 5203474, 10406948, 20813896]

約数ペア:

[(1, 20813896), (2, 10406948), (4, 5203474), (8, 2601737), (23, 904952), (31, 671416), (41, 507656), (46, 452476), (62, 335708), (82, 253828), (89, 233864), (92, 226238), (124, 167854), (164, 126914), (178, 116932), (184, 113119), (248, 83927), (328, 63457), (356, 58466), (712, 29233), (713, 29192), (943, 22072), (1271, 16376), (1426, 14596), (1886, 11036), (2047, 10168), (2542, 8188), (2759, 7544), (2852, 7298), (3649, 5704), (3772, 5518), (4094, 5084)]