31917820

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{2459}}^1$

素因数の和:2538

約数の個数: 48

約数和(自身を含む): 74390400

約数和(自身を除く): 42472580

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 59, 110, 118, 220, 236, 295, 590, 649, 1180, 1298, 2459, 2596, 3245, 4918, 6490, 9836, 12295, 12980, 24590, 27049, 49180, 54098, 108196, 135245, 145081, 270490, 290162, 540980, 580324, 725405, 1450810, 1595891, 2901620, 3191782, 6383564, 7979455, 15958910, 31917820]

約数ペア:

[(1, 31917820), (2, 15958910), (4, 7979455), (5, 6383564), (10, 3191782), (11, 2901620), (20, 1595891), (22, 1450810), (44, 725405), (55, 580324), (59, 540980), (110, 290162), (118, 270490), (220, 145081), (236, 135245), (295, 108196), (590, 54098), (649, 49180), (1180, 27049), (1298, 24590), (2459, 12980), (2596, 12295), (3245, 9836), (4918, 6490)]