389396260

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^2\times {\mathrm{4903}}^1$

素因数の和:4961

約数の個数: 72

約数和(自身を含む): 941685696

約数和(自身を除く): 552289436

約数列:

[1, 2, 4, 5, 10, 11, 19, 20, 22, 38, 44, 55, 76, 95, 110, 190, 209, 220, 361, 380, 418, 722, 836, 1045, 1444, 1805, 2090, 3610, 3971, 4180, 4903, 7220, 7942, 9806, 15884, 19612, 19855, 24515, 39710, 49030, 53933, 79420, 93157, 98060, 107866, 186314, 215732, 269665, 372628, 465785, 539330, 931570, 1024727, 1078660, 1769983, 1863140, 2049454, 3539966, 4098908, 5123635, 7079932, 8849915, 10247270, 17699830, 19469813, 20494540, 35399660, 38939626, 77879252, 97349065, 194698130, 389396260]

約数ペア:

[(1, 389396260), (2, 194698130), (4, 97349065), (5, 77879252), (10, 38939626), (11, 35399660), (19, 20494540), (20, 19469813), (22, 17699830), (38, 10247270), (44, 8849915), (55, 7079932), (76, 5123635), (95, 4098908), (110, 3539966), (190, 2049454), (209, 1863140), (220, 1769983), (361, 1078660), (380, 1024727), (418, 931570), (722, 539330), (836, 465785), (1045, 372628), (1444, 269665), (1805, 215732), (2090, 186314), (3610, 107866), (3971, 98060), (4180, 93157), (4903, 79420), (7220, 53933), (7942, 49030), (9806, 39710), (15884, 24515), (19612, 19855)]