30720942

素因数分解:

$2^1\times 3^2\times 7^2\times {\mathrm{61}}^1\times {\mathrm{571}}^1$

素因数の和:654

約数の個数: 72

約数和(自身を含む): 78836472

約数和(自身を除く): 48115530

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 49, 61, 63, 98, 122, 126, 147, 183, 294, 366, 427, 441, 549, 571, 854, 882, 1098, 1142, 1281, 1713, 2562, 2989, 3426, 3843, 3997, 5139, 5978, 7686, 7994, 8967, 10278, 11991, 17934, 23982, 26901, 27979, 34831, 35973, 53802, 55958, 69662, 71946, 83937, 104493, 167874, 208986, 243817, 251811, 313479, 487634, 503622, 626958, 731451, 1462902, 1706719, 2194353, 3413438, 4388706, 5120157, 10240314, 15360471, 30720942]

約数ペア:

[(1, 30720942), (2, 15360471), (3, 10240314), (6, 5120157), (7, 4388706), (9, 3413438), (14, 2194353), (18, 1706719), (21, 1462902), (42, 731451), (49, 626958), (61, 503622), (63, 487634), (98, 313479), (122, 251811), (126, 243817), (147, 208986), (183, 167874), (294, 104493), (366, 83937), (427, 71946), (441, 69662), (549, 55958), (571, 53802), (854, 35973), (882, 34831), (1098, 27979), (1142, 26901), (1281, 23982), (1713, 17934), (2562, 11991), (2989, 10278), (3426, 8967), (3843, 7994), (3997, 7686), (5139, 5978)]