228726145

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{109}}^1\times {\mathrm{257}}^1$

素因数の和:465

約数の個数: 32

約数和(自身を含む): 294243840

約数和(自身を除く): 65517695

約数列:

[1, 5, 23, 71, 109, 115, 257, 355, 545, 1285, 1633, 2507, 5911, 7739, 8165, 12535, 18247, 28013, 29555, 38695, 91235, 140065, 177997, 419681, 644299, 889985, 1988923, 2098405, 3221495, 9944615, 45745229, 228726145]

約数ペア:

[(1, 228726145), (5, 45745229), (23, 9944615), (71, 3221495), (109, 2098405), (115, 1988923), (257, 889985), (355, 644299), (545, 419681), (1285, 177997), (1633, 140065), (2507, 91235), (5911, 38695), (7739, 29555), (8165, 28013), (12535, 18247)]