1900111100

素因数分解:

$2^2\times 5^2\times {\mathrm{2111}}^1\times {\mathrm{9001}}^1$

素因数の和:11126

約数の個数: 36

約数和(自身を含む): 4125652608

約数和(自身を除く): 2225541508

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 2111, 4222, 8444, 9001, 10555, 18002, 21110, 36004, 42220, 45005, 52775, 90010, 105550, 180020, 211100, 225025, 450050, 900100, 19001111, 38002222, 76004444, 95005555, 190011110, 380022220, 475027775, 950055550, 1900111100]

約数ペア:

[(1, 1900111100), (2, 950055550), (4, 475027775), (5, 380022220), (10, 190011110), (20, 95005555), (25, 76004444), (50, 38002222), (100, 19001111), (2111, 900100), (4222, 450050), (8444, 225025), (9001, 211100), (10555, 180020), (18002, 105550), (21110, 90010), (36004, 52775), (42220, 45005)]