2016989205

素因数分解:

$3^1\times 5^1\times 7^3\times {\mathrm{11}}^1\times {\mathrm{157}}^1\times {\mathrm{227}}^1$

素因数の和:424

約数の個数: 128

約数和(自身を含む): 4149964800

約数和(自身を除く): 2132975595

約数列:

[1, 3, 5, 7, 11, 15, 21, 33, 35, 49, 55, 77, 105, 147, 157, 165, 227, 231, 245, 343, 385, 471, 539, 681, 735, 785, 1029, 1099, 1135, 1155, 1589, 1617, 1715, 1727, 2355, 2497, 2695, 3297, 3405, 3773, 4767, 5145, 5181, 5495, 7491, 7693, 7945, 8085, 8635, 11123, 11319, 12089, 12485, 16485, 17479, 18865, 23079, 23835, 25905, 33369, 35639, 36267, 37455, 38465, 52437, 53851, 55615, 56595, 60445, 77861, 84623, 87395, 106917, 115395, 122353, 161553, 166845, 178195, 181335, 233583, 249473, 253869, 262185, 269255, 367059, 389305, 392029, 423115, 534585, 592361, 611765, 748419, 807765, 856471, 1167915, 1176087, 1247365, 1269345, 1746311, 1777083, 1835295, 1960145, 2569413, 2744203, 2961805, 3742095, 4282355, 5238933, 5880435, 8232609, 8731555, 8885415, 12224177, 12847065, 13721015, 19209421, 26194665, 36672531, 41163045, 57628263, 61120885, 96047105, 134465947, 183362655, 288141315, 403397841, 672329735, 2016989205]

約数ペア:

[(1, 2016989205), (3, 672329735), (5, 403397841), (7, 288141315), (11, 183362655), (15, 134465947), (21, 96047105), (33, 61120885), (35, 57628263), (49, 41163045), (55, 36672531), (77, 26194665), (105, 19209421), (147, 13721015), (157, 12847065), (165, 12224177), (227, 8885415), (231, 8731555), (245, 8232609), (343, 5880435), (385, 5238933), (471, 4282355), (539, 3742095), (681, 2961805), (735, 2744203), (785, 2569413), (1029, 1960145), (1099, 1835295), (1135, 1777083), (1155, 1746311), (1589, 1269345), (1617, 1247365), (1715, 1176087), (1727, 1167915), (2355, 856471), (2497, 807765), (2695, 748419), (3297, 611765), (3405, 592361), (3773, 534585), (4767, 423115), (5145, 392029), (5181, 389305), (5495, 367059), (7491, 269255), (7693, 262185), (7945, 253869), (8085, 249473), (8635, 233583), (11123, 181335), (11319, 178195), (12089, 166845), (12485, 161553), (16485, 122353), (17479, 115395), (18865, 106917), (23079, 87395), (23835, 84623), (25905, 77861), (33369, 60445), (35639, 56595), (36267, 55615), (37455, 53851), (38465, 52437)]