31155080

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^2\times {\mathrm{41}}^1\times {\mathrm{157}}^1$

素因数の和:231

約数の個数: 96

約数和(自身を含む): 79432920

約数和(自身を除く): 48277840

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 41, 44, 55, 82, 88, 110, 121, 157, 164, 205, 220, 242, 314, 328, 410, 440, 451, 484, 605, 628, 785, 820, 902, 968, 1210, 1256, 1570, 1640, 1727, 1804, 2255, 2420, 3140, 3454, 3608, 4510, 4840, 4961, 6280, 6437, 6908, 8635, 9020, 9922, 12874, 13816, 17270, 18040, 18997, 19844, 24805, 25748, 32185, 34540, 37994, 39688, 49610, 51496, 64370, 69080, 70807, 75988, 94985, 99220, 128740, 141614, 151976, 189970, 198440, 257480, 283228, 354035, 379940, 566456, 708070, 759880, 778877, 1416140, 1557754, 2832280, 3115508, 3894385, 6231016, 7788770, 15577540, 31155080]

約数ペア:

[(1, 31155080), (2, 15577540), (4, 7788770), (5, 6231016), (8, 3894385), (10, 3115508), (11, 2832280), (20, 1557754), (22, 1416140), (40, 778877), (41, 759880), (44, 708070), (55, 566456), (82, 379940), (88, 354035), (110, 283228), (121, 257480), (157, 198440), (164, 189970), (205, 151976), (220, 141614), (242, 128740), (314, 99220), (328, 94985), (410, 75988), (440, 70807), (451, 69080), (484, 64370), (605, 51496), (628, 49610), (785, 39688), (820, 37994), (902, 34540), (968, 32185), (1210, 25748), (1256, 24805), (1570, 19844), (1640, 18997), (1727, 18040), (1804, 17270), (2255, 13816), (2420, 12874), (3140, 9922), (3454, 9020), (3608, 8635), (4510, 6908), (4840, 6437), (4961, 6280)]