2211820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{181}}^1$

素因数の和:250

約数の個数: 48

約数和(自身を含む): 5136768

約数和(自身を除く): 2924948

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 47, 52, 65, 94, 130, 181, 188, 235, 260, 362, 470, 611, 724, 905, 940, 1222, 1810, 2353, 2444, 3055, 3620, 4706, 6110, 8507, 9412, 11765, 12220, 17014, 23530, 34028, 42535, 47060, 85070, 110591, 170140, 221182, 442364, 552955, 1105910, 2211820]

約数ペア:

[(1, 2211820), (2, 1105910), (4, 552955), (5, 442364), (10, 221182), (13, 170140), (20, 110591), (26, 85070), (47, 47060), (52, 42535), (65, 34028), (94, 23530), (130, 17014), (181, 12220), (188, 11765), (235, 9412), (260, 8507), (362, 6110), (470, 4706), (611, 3620), (724, 3055), (905, 2444), (940, 2353), (1222, 1810)]