19007740

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{73}}^1\times {\mathrm{277}}^1$

素因数の和:406

約数の個数: 48

約数和(自身を含む): 41473152

約数和(自身を除く): 22465412

約数列:

[1, 2, 4, 5, 10, 20, 47, 73, 94, 146, 188, 235, 277, 292, 365, 470, 554, 730, 940, 1108, 1385, 1460, 2770, 3431, 5540, 6862, 13019, 13724, 17155, 20221, 26038, 34310, 40442, 52076, 65095, 68620, 80884, 101105, 130190, 202210, 260380, 404420, 950387, 1900774, 3801548, 4751935, 9503870, 19007740]

約数ペア:

[(1, 19007740), (2, 9503870), (4, 4751935), (5, 3801548), (10, 1900774), (20, 950387), (47, 404420), (73, 260380), (94, 202210), (146, 130190), (188, 101105), (235, 80884), (277, 68620), (292, 65095), (365, 52076), (470, 40442), (554, 34310), (730, 26038), (940, 20221), (1108, 17155), (1385, 13724), (1460, 13019), (2770, 6862), (3431, 5540)]