306798980

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{53}}^2\times {\mathrm{127}}^1$

素因数の和:285

約数の個数: 72

約数和(自身を含む): 677225472

約数和(自身を除く): 370426492

約数列:

[1, 2, 4, 5, 10, 20, 43, 53, 86, 106, 127, 172, 212, 215, 254, 265, 430, 508, 530, 635, 860, 1060, 1270, 2279, 2540, 2809, 4558, 5461, 5618, 6731, 9116, 10922, 11236, 11395, 13462, 14045, 21844, 22790, 26924, 27305, 28090, 33655, 45580, 54610, 56180, 67310, 109220, 120787, 134620, 241574, 289433, 356743, 483148, 578866, 603935, 713486, 1157732, 1207870, 1426972, 1447165, 1783715, 2415740, 2894330, 3567430, 5788660, 7134860, 15339949, 30679898, 61359796, 76699745, 153399490, 306798980]

約数ペア:

[(1, 306798980), (2, 153399490), (4, 76699745), (5, 61359796), (10, 30679898), (20, 15339949), (43, 7134860), (53, 5788660), (86, 3567430), (106, 2894330), (127, 2415740), (172, 1783715), (212, 1447165), (215, 1426972), (254, 1207870), (265, 1157732), (430, 713486), (508, 603935), (530, 578866), (635, 483148), (860, 356743), (1060, 289433), (1270, 241574), (2279, 134620), (2540, 120787), (2809, 109220), (4558, 67310), (5461, 56180), (5618, 54610), (6731, 45580), (9116, 33655), (10922, 28090), (11236, 27305), (11395, 26924), (13462, 22790), (14045, 21844)]