18223820

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{173}}^1\times {\mathrm{229}}^1$

素因数の和:434

約数の個数: 48

約数和(自身を含む): 40340160

約数和(自身を除く): 22116340

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 173, 229, 230, 346, 458, 460, 692, 865, 916, 1145, 1730, 2290, 3460, 3979, 4580, 5267, 7958, 10534, 15916, 19895, 21068, 26335, 39617, 39790, 52670, 79234, 79580, 105340, 158468, 198085, 396170, 792340, 911191, 1822382, 3644764, 4555955, 9111910, 18223820]

約数ペア:

[(1, 18223820), (2, 9111910), (4, 4555955), (5, 3644764), (10, 1822382), (20, 911191), (23, 792340), (46, 396170), (92, 198085), (115, 158468), (173, 105340), (229, 79580), (230, 79234), (346, 52670), (458, 39790), (460, 39617), (692, 26335), (865, 21068), (916, 19895), (1145, 15916), (1730, 10534), (2290, 7958), (3460, 5267), (3979, 4580)]