217781640

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{604949}}^1$

素因数の和:604966

約数の個数: 48

約数和(自身を含む): 707791500

約数和(自身を除く): 490009860

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 120, 180, 360, 604949, 1209898, 1814847, 2419796, 3024745, 3629694, 4839592, 5444541, 6049490, 7259388, 9074235, 10889082, 12098980, 14518776, 18148470, 21778164, 24197960, 27222705, 36296940, 43556328, 54445410, 72593880, 108890820, 217781640]

約数ペア:

[(1, 217781640), (2, 108890820), (3, 72593880), (4, 54445410), (5, 43556328), (6, 36296940), (8, 27222705), (9, 24197960), (10, 21778164), (12, 18148470), (15, 14518776), (18, 12098980), (20, 10889082), (24, 9074235), (30, 7259388), (36, 6049490), (40, 5444541), (45, 4839592), (60, 3629694), (72, 3024745), (90, 2419796), (120, 1814847), (180, 1209898), (360, 604949)]