81440520

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{96953}}^1$

素因数の和:96974

約数の個数: 64

約数和(自身を含む): 279227520

約数和(自身を除く): 197787000

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840, 96953, 193906, 290859, 387812, 484765, 581718, 678671, 775624, 969530, 1163436, 1357342, 1454295, 1939060, 2036013, 2326872, 2714684, 2908590, 3393355, 3878120, 4072026, 5429368, 5817180, 6786710, 8144052, 10180065, 11634360, 13573420, 16288104, 20360130, 27146840, 40720260, 81440520]

約数ペア:

[(1, 81440520), (2, 40720260), (3, 27146840), (4, 20360130), (5, 16288104), (6, 13573420), (7, 11634360), (8, 10180065), (10, 8144052), (12, 6786710), (14, 5817180), (15, 5429368), (20, 4072026), (21, 3878120), (24, 3393355), (28, 2908590), (30, 2714684), (35, 2326872), (40, 2036013), (42, 1939060), (56, 1454295), (60, 1357342), (70, 1163436), (84, 969530), (105, 775624), (120, 678671), (140, 581718), (168, 484765), (210, 387812), (280, 290859), (420, 193906), (840, 96953)]