20945744

素因数分解:

$2^4\times {\mathrm{73}}^1\times {\mathrm{79}}^1\times {\mathrm{227}}^1$

素因数の和:387

約数の個数: 40

約数和(自身を含む): 41842560

約数和(自身を除く): 20896816

約数列:

[1, 2, 4, 8, 16, 73, 79, 146, 158, 227, 292, 316, 454, 584, 632, 908, 1168, 1264, 1816, 3632, 5767, 11534, 16571, 17933, 23068, 33142, 35866, 46136, 66284, 71732, 92272, 132568, 143464, 265136, 286928, 1309109, 2618218, 5236436, 10472872, 20945744]

約数ペア:

[(1, 20945744), (2, 10472872), (4, 5236436), (8, 2618218), (16, 1309109), (73, 286928), (79, 265136), (146, 143464), (158, 132568), (227, 92272), (292, 71732), (316, 66284), (454, 46136), (584, 35866), (632, 33142), (908, 23068), (1168, 17933), (1264, 16571), (1816, 11534), (3632, 5767)]