12685420

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^2\times {\mathrm{109}}^1$

素因数の和:175

約数の個数: 72

約数和(自身を含む): 30658320

約数和(自身を除く): 17972900

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 23, 44, 46, 55, 92, 109, 110, 115, 218, 220, 230, 253, 436, 460, 506, 529, 545, 1012, 1058, 1090, 1199, 1265, 2116, 2180, 2398, 2507, 2530, 2645, 4796, 5014, 5060, 5290, 5819, 5995, 10028, 10580, 11638, 11990, 12535, 23276, 23980, 25070, 27577, 29095, 50140, 55154, 57661, 58190, 110308, 115322, 116380, 137885, 230644, 275770, 288305, 551540, 576610, 634271, 1153220, 1268542, 2537084, 3171355, 6342710, 12685420]

約数ペア:

[(1, 12685420), (2, 6342710), (4, 3171355), (5, 2537084), (10, 1268542), (11, 1153220), (20, 634271), (22, 576610), (23, 551540), (44, 288305), (46, 275770), (55, 230644), (92, 137885), (109, 116380), (110, 115322), (115, 110308), (218, 58190), (220, 57661), (230, 55154), (253, 50140), (436, 29095), (460, 27577), (506, 25070), (529, 23980), (545, 23276), (1012, 12535), (1058, 11990), (1090, 11638), (1199, 10580), (1265, 10028), (2116, 5995), (2180, 5819), (2398, 5290), (2507, 5060), (2530, 5014), (2645, 4796)]