20181445904

素因数分解:

$2^4\times {\mathrm{31}}^2\times {\mathrm{103}}^1\times {\mathrm{12743}}^1$

素因数の和:12916

約数の個数: 60

約数和(自身を含む): 40799049408

約数和(自身を除く): 20617603504

約数列:

[1, 2, 4, 8, 16, 31, 62, 103, 124, 206, 248, 412, 496, 824, 961, 1648, 1922, 3193, 3844, 6386, 7688, 12743, 12772, 15376, 25486, 25544, 50972, 51088, 98983, 101944, 197966, 203888, 395033, 395932, 790066, 791864, 1312529, 1580132, 1583728, 2625058, 3160264, 5250116, 6320528, 10500232, 12246023, 21000464, 24492046, 40688399, 48984092, 81376798, 97968184, 162753596, 195936368, 325507192, 651014384, 1261340369, 2522680738, 5045361476, 10090722952, 20181445904]

約数ペア:

[(1, 20181445904), (2, 10090722952), (4, 5045361476), (8, 2522680738), (16, 1261340369), (31, 651014384), (62, 325507192), (103, 195936368), (124, 162753596), (206, 97968184), (248, 81376798), (412, 48984092), (496, 40688399), (824, 24492046), (961, 21000464), (1648, 12246023), (1922, 10500232), (3193, 6320528), (3844, 5250116), (6386, 3160264), (7688, 2625058), (12743, 1583728), (12772, 1580132), (15376, 1312529), (25486, 791864), (25544, 790066), (50972, 395932), (51088, 395033), (98983, 203888), (101944, 197966)]