211013620

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{421}}^1\times {\mathrm{1319}}^1$

素因数の和:1768

約数の個数: 48

約数和(自身を含む): 467913600

約数和(自身を除く): 256899980

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 421, 842, 1319, 1684, 2105, 2638, 4210, 5276, 6595, 7999, 8420, 13190, 15998, 25061, 26380, 31996, 39995, 50122, 79990, 100244, 125305, 159980, 250610, 501220, 555299, 1110598, 2221196, 2776495, 5552990, 10550681, 11105980, 21101362, 42202724, 52753405, 105506810, 211013620]

約数ペア:

[(1, 211013620), (2, 105506810), (4, 52753405), (5, 42202724), (10, 21101362), (19, 11105980), (20, 10550681), (38, 5552990), (76, 2776495), (95, 2221196), (190, 1110598), (380, 555299), (421, 501220), (842, 250610), (1319, 159980), (1684, 125305), (2105, 100244), (2638, 79990), (4210, 50122), (5276, 39995), (6595, 31996), (7999, 26380), (8420, 25061), (13190, 15998)]