18596020

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{73}}^1\times {\mathrm{271}}^1$

素因数の和:400

約数の個数: 48

約数和(自身を含む): 40578048

約数和(自身を除く): 21982028

約数列:

[1, 2, 4, 5, 10, 20, 47, 73, 94, 146, 188, 235, 271, 292, 365, 470, 542, 730, 940, 1084, 1355, 1460, 2710, 3431, 5420, 6862, 12737, 13724, 17155, 19783, 25474, 34310, 39566, 50948, 63685, 68620, 79132, 98915, 127370, 197830, 254740, 395660, 929801, 1859602, 3719204, 4649005, 9298010, 18596020]

約数ペア:

[(1, 18596020), (2, 9298010), (4, 4649005), (5, 3719204), (10, 1859602), (20, 929801), (47, 395660), (73, 254740), (94, 197830), (146, 127370), (188, 98915), (235, 79132), (271, 68620), (292, 63685), (365, 50948), (470, 39566), (542, 34310), (730, 25474), (940, 19783), (1084, 17155), (1355, 13724), (1460, 12737), (2710, 6862), (3431, 5420)]