180560720

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{55049}}^1$

素因数の和:55103

約数の個数: 40

約数和(自身を含む): 430050600

約数和(自身を除く): 249489880

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 164, 205, 328, 410, 656, 820, 1640, 3280, 55049, 110098, 220196, 275245, 440392, 550490, 880784, 1100980, 2201960, 2257009, 4403920, 4514018, 9028036, 11285045, 18056072, 22570090, 36112144, 45140180, 90280360, 180560720]

約数ペア:

[(1, 180560720), (2, 90280360), (4, 45140180), (5, 36112144), (8, 22570090), (10, 18056072), (16, 11285045), (20, 9028036), (40, 4514018), (41, 4403920), (80, 2257009), (82, 2201960), (164, 1100980), (205, 880784), (328, 550490), (410, 440392), (656, 275245), (820, 220196), (1640, 110098), (3280, 55049)]