18732080

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{5711}}^1$

素因数の和:5765

約数の個数: 40

約数和(自身を含む): 44622144

約数和(自身を除く): 25890064

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 164, 205, 328, 410, 656, 820, 1640, 3280, 5711, 11422, 22844, 28555, 45688, 57110, 91376, 114220, 228440, 234151, 456880, 468302, 936604, 1170755, 1873208, 2341510, 3746416, 4683020, 9366040, 18732080]

約数ペア:

[(1, 18732080), (2, 9366040), (4, 4683020), (5, 3746416), (8, 2341510), (10, 1873208), (16, 1170755), (20, 936604), (40, 468302), (41, 456880), (80, 234151), (82, 228440), (164, 114220), (205, 91376), (328, 57110), (410, 45688), (656, 28555), (820, 22844), (1640, 11422), (3280, 5711)]