159788120

素因数分解:

$2^3\times 5^1\times {\mathrm{409}}^1\times {\mathrm{9767}}^1$

素因数の和:10187

約数の個数: 32

約数和(自身を含む): 360439200

約数和(自身を除く): 200651080

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 409, 818, 1636, 2045, 3272, 4090, 8180, 9767, 16360, 19534, 39068, 48835, 78136, 97670, 195340, 390680, 3994703, 7989406, 15978812, 19973515, 31957624, 39947030, 79894060, 159788120]

約数ペア:

[(1, 159788120), (2, 79894060), (4, 39947030), (5, 31957624), (8, 19973515), (10, 15978812), (20, 7989406), (40, 3994703), (409, 390680), (818, 195340), (1636, 97670), (2045, 78136), (3272, 48835), (4090, 39068), (8180, 19534), (9767, 16360)]