20552128

素因数分解:

$2^6\times {\mathrm{53}}^1\times {\mathrm{73}}^1\times {\mathrm{83}}^1$

素因数の和:221

約数の個数: 56

約数和(自身を含む): 42629328

約数和(自身を除く): 22077200

約数列:

[1, 2, 4, 8, 16, 32, 53, 64, 73, 83, 106, 146, 166, 212, 292, 332, 424, 584, 664, 848, 1168, 1328, 1696, 2336, 2656, 3392, 3869, 4399, 4672, 5312, 6059, 7738, 8798, 12118, 15476, 17596, 24236, 30952, 35192, 48472, 61904, 70384, 96944, 123808, 140768, 193888, 247616, 281536, 321127, 387776, 642254, 1284508, 2569016, 5138032, 10276064, 20552128]

約数ペア:

[(1, 20552128), (2, 10276064), (4, 5138032), (8, 2569016), (16, 1284508), (32, 642254), (53, 387776), (64, 321127), (73, 281536), (83, 247616), (106, 193888), (146, 140768), (166, 123808), (212, 96944), (292, 70384), (332, 61904), (424, 48472), (584, 35192), (664, 30952), (848, 24236), (1168, 17596), (1328, 15476), (1696, 12118), (2336, 8798), (2656, 7738), (3392, 6059), (3869, 5312), (4399, 4672)]