18837040

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{5743}}^1$

素因数の和:5797

約数の個数: 40

約数和(自身を含む): 44872128

約数和(自身を除く): 26035088

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 164, 205, 328, 410, 656, 820, 1640, 3280, 5743, 11486, 22972, 28715, 45944, 57430, 91888, 114860, 229720, 235463, 459440, 470926, 941852, 1177315, 1883704, 2354630, 3767408, 4709260, 9418520, 18837040]

約数ペア:

[(1, 18837040), (2, 9418520), (4, 4709260), (5, 3767408), (8, 2354630), (10, 1883704), (16, 1177315), (20, 941852), (40, 470926), (41, 459440), (80, 235463), (82, 229720), (164, 114860), (205, 91888), (328, 57430), (410, 45944), (656, 28715), (820, 22972), (1640, 11486), (3280, 5743)]