28978520

素因数分解:

$2^3\times 5^1\times {\mathrm{191}}^1\times {\mathrm{3793}}^1$

素因数の和:3995

約数の個数: 32

約数和(自身を含む): 65560320

約数和(自身を除く): 36581800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 191, 382, 764, 955, 1528, 1910, 3793, 3820, 7586, 7640, 15172, 18965, 30344, 37930, 75860, 151720, 724463, 1448926, 2897852, 3622315, 5795704, 7244630, 14489260, 28978520]

約数ペア:

[(1, 28978520), (2, 14489260), (4, 7244630), (5, 5795704), (8, 3622315), (10, 2897852), (20, 1448926), (40, 724463), (191, 151720), (382, 75860), (764, 37930), (955, 30344), (1528, 18965), (1910, 15172), (3793, 7640), (3820, 7586)]