2011992380

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{181}}^1\times {\mathrm{17929}}^1$

素因数の和:18150

約数の個数: 48

約数和(自身を含む): 4385821440

約数和(自身を除く): 2373829060

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 181, 310, 362, 620, 724, 905, 1810, 3620, 5611, 11222, 17929, 22444, 28055, 35858, 56110, 71716, 89645, 112220, 179290, 358580, 555799, 1111598, 2223196, 2778995, 3245149, 5557990, 6490298, 11115980, 12980596, 16225745, 32451490, 64902980, 100599619, 201199238, 402398476, 502998095, 1005996190, 2011992380]

約数ペア:

[(1, 2011992380), (2, 1005996190), (4, 502998095), (5, 402398476), (10, 201199238), (20, 100599619), (31, 64902980), (62, 32451490), (124, 16225745), (155, 12980596), (181, 11115980), (310, 6490298), (362, 5557990), (620, 3245149), (724, 2778995), (905, 2223196), (1810, 1111598), (3620, 555799), (5611, 358580), (11222, 179290), (17929, 112220), (22444, 89645), (28055, 71716), (35858, 56110)]