20797888

素因数分解:

$2^6\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{199}}^1$

素因数の和:305

約数の個数: 56

約数和(自身を含む): 43891200

約数和(自身を除く): 23093312

約数列:

[1, 2, 4, 8, 16, 23, 32, 46, 64, 71, 92, 142, 184, 199, 284, 368, 398, 568, 736, 796, 1136, 1472, 1592, 1633, 2272, 3184, 3266, 4544, 4577, 6368, 6532, 9154, 12736, 13064, 14129, 18308, 26128, 28258, 36616, 52256, 56516, 73232, 104512, 113032, 146464, 226064, 292928, 324967, 452128, 649934, 904256, 1299868, 2599736, 5199472, 10398944, 20797888]

約数ペア:

[(1, 20797888), (2, 10398944), (4, 5199472), (8, 2599736), (16, 1299868), (23, 904256), (32, 649934), (46, 452128), (64, 324967), (71, 292928), (92, 226064), (142, 146464), (184, 113032), (199, 104512), (284, 73232), (368, 56516), (398, 52256), (568, 36616), (736, 28258), (796, 26128), (1136, 18308), (1472, 14129), (1592, 13064), (1633, 12736), (2272, 9154), (3184, 6532), (3266, 6368), (4544, 4577)]