20881930

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{163}}^1\times {\mathrm{557}}^1$

素因数の和:750

約数の個数: 32

約数和(自身を含む): 39533184

約数和(自身を除く): 18651254

約数列:

[1, 2, 5, 10, 23, 46, 115, 163, 230, 326, 557, 815, 1114, 1630, 2785, 3749, 5570, 7498, 12811, 18745, 25622, 37490, 64055, 90791, 128110, 181582, 453955, 907910, 2088193, 4176386, 10440965, 20881930]

約数ペア:

[(1, 20881930), (2, 10440965), (5, 4176386), (10, 2088193), (23, 907910), (46, 453955), (115, 181582), (163, 128110), (230, 90791), (326, 64055), (557, 37490), (815, 25622), (1114, 18745), (1630, 12811), (2785, 7498), (3749, 5570)]