18751720

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{36061}}^1$

素因数の和:36085

約数の個数: 32

約数和(自身を含む): 45438120

約数和(自身を除く): 26686400

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 36061, 72122, 144244, 180305, 288488, 360610, 468793, 721220, 937586, 1442440, 1875172, 2343965, 3750344, 4687930, 9375860, 18751720]

約数ペア:

[(1, 18751720), (2, 9375860), (4, 4687930), (5, 3750344), (8, 2343965), (10, 1875172), (13, 1442440), (20, 937586), (26, 721220), (40, 468793), (52, 360610), (65, 288488), (104, 180305), (130, 144244), (260, 72122), (520, 36061)]