30326180

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{179}}^1\times {\mathrm{197}}^1$

素因数の和:428

約数の個数: 48

約数和(自身を含む): 65862720

約数和(自身を除く): 35536540

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 179, 197, 215, 358, 394, 430, 716, 788, 860, 895, 985, 1790, 1970, 3580, 3940, 7697, 8471, 15394, 16942, 30788, 33884, 35263, 38485, 42355, 70526, 76970, 84710, 141052, 153940, 169420, 176315, 352630, 705260, 1516309, 3032618, 6065236, 7581545, 15163090, 30326180]

約数ペア:

[(1, 30326180), (2, 15163090), (4, 7581545), (5, 6065236), (10, 3032618), (20, 1516309), (43, 705260), (86, 352630), (172, 176315), (179, 169420), (197, 153940), (215, 141052), (358, 84710), (394, 76970), (430, 70526), (716, 42355), (788, 38485), (860, 35263), (895, 33884), (985, 30788), (1790, 16942), (1970, 15394), (3580, 8471), (3940, 7697)]