81159520

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{39019}}^1$

素因数の和:39047

約数の個数: 48

約数和(自身を含む): 206493840

約数和(自身を除く): 125334320

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 65, 80, 104, 130, 160, 208, 260, 416, 520, 1040, 2080, 39019, 78038, 156076, 195095, 312152, 390190, 507247, 624304, 780380, 1014494, 1248608, 1560760, 2028988, 2536235, 3121520, 4057976, 5072470, 6243040, 8115952, 10144940, 16231904, 20289880, 40579760, 81159520]

約数ペア:

[(1, 81159520), (2, 40579760), (4, 20289880), (5, 16231904), (8, 10144940), (10, 8115952), (13, 6243040), (16, 5072470), (20, 4057976), (26, 3121520), (32, 2536235), (40, 2028988), (52, 1560760), (65, 1248608), (80, 1014494), (104, 780380), (130, 624304), (160, 507247), (208, 390190), (260, 312152), (416, 195095), (520, 156076), (1040, 78038), (2080, 39019)]