78466880

素因数分解:

$2^6\times 5^1\times {\mathrm{245209}}^1$

素因数の和:245226

約数の個数: 28

約数和(自身を含む): 186850020

約数和(自身を除く): 108383140

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 245209, 490418, 980836, 1226045, 1961672, 2452090, 3923344, 4904180, 7846688, 9808360, 15693376, 19616720, 39233440, 78466880]

約数ペア:

[(1, 78466880), (2, 39233440), (4, 19616720), (5, 15693376), (8, 9808360), (10, 7846688), (16, 4904180), (20, 3923344), (32, 2452090), (40, 1961672), (64, 1226045), (80, 980836), (160, 490418), (320, 245209)]