42191720

素因数分解:

$2^3\times 5^1\times {\mathrm{109}}^1\times {\mathrm{9677}}^1$

素因数の和:9797

約数の個数: 32

約数和(自身を含む): 95812200

約数和(自身を除く): 53620480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 109, 218, 436, 545, 872, 1090, 2180, 4360, 9677, 19354, 38708, 48385, 77416, 96770, 193540, 387080, 1054793, 2109586, 4219172, 5273965, 8438344, 10547930, 21095860, 42191720]

約数ペア:

[(1, 42191720), (2, 21095860), (4, 10547930), (5, 8438344), (8, 5273965), (10, 4219172), (20, 2109586), (40, 1054793), (109, 387080), (218, 193540), (436, 96770), (545, 77416), (872, 48385), (1090, 38708), (2180, 19354), (4360, 9677)]