119378920

素因数分解:

$2^3\times 5^1\times {\mathrm{409}}^1\times {\mathrm{7297}}^1$

素因数の和:7717

約数の個数: 32

約数和(自身を含む): 269296200

約数和(自身を除く): 149917280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 409, 818, 1636, 2045, 3272, 4090, 7297, 8180, 14594, 16360, 29188, 36485, 58376, 72970, 145940, 291880, 2984473, 5968946, 11937892, 14922365, 23875784, 29844730, 59689460, 119378920]

約数ペア:

[(1, 119378920), (2, 59689460), (4, 29844730), (5, 23875784), (8, 14922365), (10, 11937892), (20, 5968946), (40, 2984473), (409, 291880), (818, 145940), (1636, 72970), (2045, 58376), (3272, 36485), (4090, 29188), (7297, 16360), (8180, 14594)]