5251280

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{1601}}^1$

素因数の和:1655

約数の個数: 40

約数和(自身を含む): 12514824

約数和(自身を除く): 7263544

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 164, 205, 328, 410, 656, 820, 1601, 1640, 3202, 3280, 6404, 8005, 12808, 16010, 25616, 32020, 64040, 65641, 128080, 131282, 262564, 328205, 525128, 656410, 1050256, 1312820, 2625640, 5251280]

約数ペア:

[(1, 5251280), (2, 2625640), (4, 1312820), (5, 1050256), (8, 656410), (10, 525128), (16, 328205), (20, 262564), (40, 131282), (41, 128080), (80, 65641), (82, 64040), (164, 32020), (205, 25616), (328, 16010), (410, 12808), (656, 8005), (820, 6404), (1601, 3280), (1640, 3202)]