19625140

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{197}}^1\times {\mathrm{293}}^1$

素因数の和:516

約数の個数: 48

約数和(自身を含む): 44008272

約数和(自身を除く): 24383132

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 197, 293, 340, 394, 586, 788, 985, 1172, 1465, 1970, 2930, 3349, 3940, 4981, 5860, 6698, 9962, 13396, 16745, 19924, 24905, 33490, 49810, 57721, 66980, 99620, 115442, 230884, 288605, 577210, 981257, 1154420, 1962514, 3925028, 4906285, 9812570, 19625140]

約数ペア:

[(1, 19625140), (2, 9812570), (4, 4906285), (5, 3925028), (10, 1962514), (17, 1154420), (20, 981257), (34, 577210), (68, 288605), (85, 230884), (170, 115442), (197, 99620), (293, 66980), (340, 57721), (394, 49810), (586, 33490), (788, 24905), (985, 19924), (1172, 16745), (1465, 13396), (1970, 9962), (2930, 6698), (3349, 5860), (3940, 4981)]