78546420

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{479}}^1\times {\mathrm{911}}^1$

素因数の和:1405

約数の個数: 72

約数和(自身を含む): 239016960

約数和(自身を除く): 160470540

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 479, 911, 958, 1437, 1822, 1916, 2395, 2733, 2874, 3644, 4311, 4555, 4790, 5466, 5748, 7185, 8199, 8622, 9110, 9580, 10932, 13665, 14370, 16398, 17244, 18220, 21555, 27330, 28740, 32796, 40995, 43110, 54660, 81990, 86220, 163980, 436369, 872738, 1309107, 1745476, 2181845, 2618214, 3927321, 4363690, 5236428, 6545535, 7854642, 8727380, 13091070, 15709284, 19636605, 26182140, 39273210, 78546420]

約数ペア:

[(1, 78546420), (2, 39273210), (3, 26182140), (4, 19636605), (5, 15709284), (6, 13091070), (9, 8727380), (10, 7854642), (12, 6545535), (15, 5236428), (18, 4363690), (20, 3927321), (30, 2618214), (36, 2181845), (45, 1745476), (60, 1309107), (90, 872738), (180, 436369), (479, 163980), (911, 86220), (958, 81990), (1437, 54660), (1822, 43110), (1916, 40995), (2395, 32796), (2733, 28740), (2874, 27330), (3644, 21555), (4311, 18220), (4555, 17244), (4790, 16398), (5466, 14370), (5748, 13665), (7185, 10932), (8199, 9580), (8622, 9110)]