155969420

素因数分解:

$2^2\times 5^1\times {\mathrm{1601}}^1\times {\mathrm{4871}}^1$

素因数の和:6481

約数の個数: 24

約数和(自身を含む): 327807648

約数和(自身を除く): 171838228

約数列:

[1, 2, 4, 5, 10, 20, 1601, 3202, 4871, 6404, 8005, 9742, 16010, 19484, 24355, 32020, 48710, 97420, 7798471, 15596942, 31193884, 38992355, 77984710, 155969420]

約数ペア:

[(1, 155969420), (2, 77984710), (4, 38992355), (5, 31193884), (10, 15596942), (20, 7798471), (1601, 97420), (3202, 48710), (4871, 32020), (6404, 24355), (8005, 19484), (9742, 16010)]