820024065

素因数分解:

$3^2\times 5^1\times 7^2\times {\mathrm{383}}^1\times {\mathrm{971}}^1$

素因数の和:1379

約数の個数: 72

約数和(自身を含む): 1659460608

約数和(自身を除く): 839436543

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 49, 63, 105, 147, 245, 315, 383, 441, 735, 971, 1149, 1915, 2205, 2681, 2913, 3447, 4855, 5745, 6797, 8043, 8739, 13405, 14565, 17235, 18767, 20391, 24129, 33985, 40215, 43695, 47579, 56301, 61173, 93835, 101955, 120645, 142737, 168903, 237895, 281505, 305865, 371893, 428211, 713685, 844515, 1115679, 1859465, 2141055, 2603251, 3347037, 5578395, 7809753, 13016255, 16735185, 18222757, 23429259, 39048765, 54668271, 91113785, 117146295, 164004813, 273341355, 820024065]

約数ペア:

[(1, 820024065), (3, 273341355), (5, 164004813), (7, 117146295), (9, 91113785), (15, 54668271), (21, 39048765), (35, 23429259), (45, 18222757), (49, 16735185), (63, 13016255), (105, 7809753), (147, 5578395), (245, 3347037), (315, 2603251), (383, 2141055), (441, 1859465), (735, 1115679), (971, 844515), (1149, 713685), (1915, 428211), (2205, 371893), (2681, 305865), (2913, 281505), (3447, 237895), (4855, 168903), (5745, 142737), (6797, 120645), (8043, 101955), (8739, 93835), (13405, 61173), (14565, 56301), (17235, 47579), (18767, 43695), (20391, 40215), (24129, 33985)]