25442780

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{109}}^1\times {\mathrm{1061}}^1$

素因数の和:1190

約数の個数: 48

約数和(自身を含む): 58877280

約数和(自身を除く): 33434500

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 109, 110, 218, 220, 436, 545, 1061, 1090, 1199, 2122, 2180, 2398, 4244, 4796, 5305, 5995, 10610, 11671, 11990, 21220, 23342, 23980, 46684, 58355, 115649, 116710, 231298, 233420, 462596, 578245, 1156490, 1272139, 2312980, 2544278, 5088556, 6360695, 12721390, 25442780]

約数ペア:

[(1, 25442780), (2, 12721390), (4, 6360695), (5, 5088556), (10, 2544278), (11, 2312980), (20, 1272139), (22, 1156490), (44, 578245), (55, 462596), (109, 233420), (110, 231298), (218, 116710), (220, 115649), (436, 58355), (545, 46684), (1061, 23980), (1090, 23342), (1199, 21220), (2122, 11990), (2180, 11671), (2398, 10610), (4244, 5995), (4796, 5305)]