1640470180

素因数分解:

$2^2\times 5^1\times {\mathrm{2053}}^1\times {\mathrm{39953}}^1$

素因数の和:42015

約数の個数: 24

約数和(自身を含む): 3446751672

約数和(自身を除く): 1806281492

約数列:

[1, 2, 4, 5, 10, 20, 2053, 4106, 8212, 10265, 20530, 39953, 41060, 79906, 159812, 199765, 399530, 799060, 82023509, 164047018, 328094036, 410117545, 820235090, 1640470180]

約数ペア:

[(1, 1640470180), (2, 820235090), (4, 410117545), (5, 328094036), (10, 164047018), (20, 82023509), (2053, 799060), (4106, 399530), (8212, 199765), (10265, 159812), (20530, 79906), (39953, 41060)]