19458790

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{59}}^2$

素因数の和:181

約数の個数: 48

約数和(自身を含む): 39262608

約数和(自身を除く): 19803818

約数列:

[1, 2, 5, 10, 13, 26, 43, 59, 65, 86, 118, 130, 215, 295, 430, 559, 590, 767, 1118, 1534, 2537, 2795, 3481, 3835, 5074, 5590, 6962, 7670, 12685, 17405, 25370, 32981, 34810, 45253, 65962, 90506, 149683, 164905, 226265, 299366, 329810, 452530, 748415, 1496830, 1945879, 3891758, 9729395, 19458790]

約数ペア:

[(1, 19458790), (2, 9729395), (5, 3891758), (10, 1945879), (13, 1496830), (26, 748415), (43, 452530), (59, 329810), (65, 299366), (86, 226265), (118, 164905), (130, 149683), (215, 90506), (295, 65962), (430, 45253), (559, 34810), (590, 32981), (767, 25370), (1118, 17405), (1534, 12685), (2537, 7670), (2795, 6962), (3481, 5590), (3835, 5074)]