209958420

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{379}}^1\times {\mathrm{1319}}^1$

素因数の和:1717

約数の個数: 96

約数和(自身を含む): 674150400

約数和(自身を除く): 464191980

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 379, 420, 758, 1137, 1319, 1516, 1895, 2274, 2638, 2653, 3790, 3957, 4548, 5276, 5306, 5685, 6595, 7580, 7914, 7959, 9233, 10612, 11370, 13190, 13265, 15828, 15918, 18466, 19785, 22740, 26380, 26530, 27699, 31836, 36932, 39570, 39795, 46165, 53060, 55398, 79140, 79590, 92330, 110796, 138495, 159180, 184660, 276990, 499901, 553980, 999802, 1499703, 1999604, 2499505, 2999406, 3499307, 4999010, 5998812, 6998614, 7498515, 9998020, 10497921, 13997228, 14997030, 17496535, 20995842, 29994060, 34993070, 41991684, 52489605, 69986140, 104979210, 209958420]

約数ペア:

[(1, 209958420), (2, 104979210), (3, 69986140), (4, 52489605), (5, 41991684), (6, 34993070), (7, 29994060), (10, 20995842), (12, 17496535), (14, 14997030), (15, 13997228), (20, 10497921), (21, 9998020), (28, 7498515), (30, 6998614), (35, 5998812), (42, 4999010), (60, 3499307), (70, 2999406), (84, 2499505), (105, 1999604), (140, 1499703), (210, 999802), (379, 553980), (420, 499901), (758, 276990), (1137, 184660), (1319, 159180), (1516, 138495), (1895, 110796), (2274, 92330), (2638, 79590), (2653, 79140), (3790, 55398), (3957, 53060), (4548, 46165), (5276, 39795), (5306, 39570), (5685, 36932), (6595, 31836), (7580, 27699), (7914, 26530), (7959, 26380), (9233, 22740), (10612, 19785), (11370, 18466), (13190, 15918), (13265, 15828)]