320492080

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{97711}}^1$

素因数の和:97765

約数の個数: 40

約数和(自身を含む): 763326144

約数和(自身を除く): 442834064

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 164, 205, 328, 410, 656, 820, 1640, 3280, 97711, 195422, 390844, 488555, 781688, 977110, 1563376, 1954220, 3908440, 4006151, 7816880, 8012302, 16024604, 20030755, 32049208, 40061510, 64098416, 80123020, 160246040, 320492080]

約数ペア:

[(1, 320492080), (2, 160246040), (4, 80123020), (5, 64098416), (8, 40061510), (10, 32049208), (16, 20030755), (20, 16024604), (40, 8012302), (41, 7816880), (80, 4006151), (82, 3908440), (164, 1954220), (205, 1563376), (328, 977110), (410, 781688), (656, 488555), (820, 390844), (1640, 195422), (3280, 97711)]