12013220

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{397}}^1$

素因数の和:512

約数の個数: 48

約数和(自身を含む): 27079920

約数和(自身を除く): 15066700

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 89, 170, 178, 340, 356, 397, 445, 794, 890, 1513, 1588, 1780, 1985, 3026, 3970, 6052, 6749, 7565, 7940, 13498, 15130, 26996, 30260, 33745, 35333, 67490, 70666, 134980, 141332, 176665, 353330, 600661, 706660, 1201322, 2402644, 3003305, 6006610, 12013220]

約数ペア:

[(1, 12013220), (2, 6006610), (4, 3003305), (5, 2402644), (10, 1201322), (17, 706660), (20, 600661), (34, 353330), (68, 176665), (85, 141332), (89, 134980), (170, 70666), (178, 67490), (340, 35333), (356, 33745), (397, 30260), (445, 26996), (794, 15130), (890, 13498), (1513, 7940), (1588, 7565), (1780, 6749), (1985, 6052), (3026, 3970)]