30408920

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{197}}^1\times {\mathrm{227}}^1$

素因数の和:452

約数の個数: 64

約数和(自身を含む): 73133280

約数和(自身を除く): 42724360

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 197, 227, 340, 394, 454, 680, 788, 908, 985, 1135, 1576, 1816, 1970, 2270, 3349, 3859, 3940, 4540, 6698, 7718, 7880, 9080, 13396, 15436, 16745, 19295, 26792, 30872, 33490, 38590, 44719, 66980, 77180, 89438, 133960, 154360, 178876, 223595, 357752, 447190, 760223, 894380, 1520446, 1788760, 3040892, 3801115, 6081784, 7602230, 15204460, 30408920]

約数ペア:

[(1, 30408920), (2, 15204460), (4, 7602230), (5, 6081784), (8, 3801115), (10, 3040892), (17, 1788760), (20, 1520446), (34, 894380), (40, 760223), (68, 447190), (85, 357752), (136, 223595), (170, 178876), (197, 154360), (227, 133960), (340, 89438), (394, 77180), (454, 66980), (680, 44719), (788, 38590), (908, 33490), (985, 30872), (1135, 26792), (1576, 19295), (1816, 16745), (1970, 15436), (2270, 13396), (3349, 9080), (3859, 7880), (3940, 7718), (4540, 6698)]