401049680

素因数分解:

$2^4\times 5^1\times {\mathrm{2239}}^2$

素因数の和:4491

約数の個数: 30

約数和(自身を含む): 932857146

約数和(自身を除く): 531807466

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2239, 4478, 8956, 11195, 17912, 22390, 35824, 44780, 89560, 179120, 5013121, 10026242, 20052484, 25065605, 40104968, 50131210, 80209936, 100262420, 200524840, 401049680]

約数ペア:

[(1, 401049680), (2, 200524840), (4, 100262420), (5, 80209936), (8, 50131210), (10, 40104968), (16, 25065605), (20, 20052484), (40, 10026242), (80, 5013121), (2239, 179120), (4478, 89560), (8956, 44780), (11195, 35824), (17912, 22390)]