15577540

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{41}}^1\times {\mathrm{157}}^1$

素因数の和:229

約数の個数: 72

約数和(自身を含む): 37068696

約数和(自身を除く): 21491156

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 41, 44, 55, 82, 110, 121, 157, 164, 205, 220, 242, 314, 410, 451, 484, 605, 628, 785, 820, 902, 1210, 1570, 1727, 1804, 2255, 2420, 3140, 3454, 4510, 4961, 6437, 6908, 8635, 9020, 9922, 12874, 17270, 18997, 19844, 24805, 25748, 32185, 34540, 37994, 49610, 64370, 70807, 75988, 94985, 99220, 128740, 141614, 189970, 283228, 354035, 379940, 708070, 778877, 1416140, 1557754, 3115508, 3894385, 7788770, 15577540]

約数ペア:

[(1, 15577540), (2, 7788770), (4, 3894385), (5, 3115508), (10, 1557754), (11, 1416140), (20, 778877), (22, 708070), (41, 379940), (44, 354035), (55, 283228), (82, 189970), (110, 141614), (121, 128740), (157, 99220), (164, 94985), (205, 75988), (220, 70807), (242, 64370), (314, 49610), (410, 37994), (451, 34540), (484, 32185), (605, 25748), (628, 24805), (785, 19844), (820, 18997), (902, 17270), (1210, 12874), (1570, 9922), (1727, 9020), (1804, 8635), (2255, 6908), (2420, 6437), (3140, 4961), (3454, 4510)]