2021096920

素因数分解:

$2^3\times 5^1\times {\mathrm{59}}^1\times {\mathrm{431}}^1\times {\mathrm{1987}}^1$

素因数の和:2488

約数の個数: 64

約数和(自身を含む): 4637606400

約数和(自身を除く): 2616509480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 59, 118, 236, 295, 431, 472, 590, 862, 1180, 1724, 1987, 2155, 2360, 3448, 3974, 4310, 7948, 8620, 9935, 15896, 17240, 19870, 25429, 39740, 50858, 79480, 101716, 117233, 127145, 203432, 234466, 254290, 468932, 508580, 586165, 856397, 937864, 1017160, 1172330, 1712794, 2344660, 3425588, 4281985, 4689320, 6851176, 8563970, 17127940, 34255880, 50527423, 101054846, 202109692, 252637115, 404219384, 505274230, 1010548460, 2021096920]

約数ペア:

[(1, 2021096920), (2, 1010548460), (4, 505274230), (5, 404219384), (8, 252637115), (10, 202109692), (20, 101054846), (40, 50527423), (59, 34255880), (118, 17127940), (236, 8563970), (295, 6851176), (431, 4689320), (472, 4281985), (590, 3425588), (862, 2344660), (1180, 1712794), (1724, 1172330), (1987, 1017160), (2155, 937864), (2360, 856397), (3448, 586165), (3974, 508580), (4310, 468932), (7948, 254290), (8620, 234466), (9935, 203432), (15896, 127145), (17240, 117233), (19870, 101716), (25429, 79480), (39740, 50858)]