78966540

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{307}}^1\times {\mathrm{1429}}^1$

素因数の和:1751

約数の個数: 72

約数和(自身を含む): 240480240

約数和(自身を除く): 161513700

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 307, 614, 921, 1228, 1429, 1535, 1842, 2763, 2858, 3070, 3684, 4287, 4605, 5526, 5716, 6140, 7145, 8574, 9210, 11052, 12861, 13815, 14290, 17148, 18420, 21435, 25722, 27630, 28580, 42870, 51444, 55260, 64305, 85740, 128610, 257220, 438703, 877406, 1316109, 1754812, 2193515, 2632218, 3948327, 4387030, 5264436, 6580545, 7896654, 8774060, 13161090, 15793308, 19741635, 26322180, 39483270, 78966540]

約数ペア:

[(1, 78966540), (2, 39483270), (3, 26322180), (4, 19741635), (5, 15793308), (6, 13161090), (9, 8774060), (10, 7896654), (12, 6580545), (15, 5264436), (18, 4387030), (20, 3948327), (30, 2632218), (36, 2193515), (45, 1754812), (60, 1316109), (90, 877406), (180, 438703), (307, 257220), (614, 128610), (921, 85740), (1228, 64305), (1429, 55260), (1535, 51444), (1842, 42870), (2763, 28580), (2858, 27630), (3070, 25722), (3684, 21435), (4287, 18420), (4605, 17148), (5526, 14290), (5716, 13815), (6140, 12861), (7145, 11052), (8574, 9210)]