81289680

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{338707}}^1$

素因数の和:338723

約数の個数: 40

約数和(自身を含む): 251998752

約数和(自身を除く): 170709072

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 338707, 677414, 1016121, 1354828, 1693535, 2032242, 2709656, 3387070, 4064484, 5080605, 5419312, 6774140, 8128968, 10161210, 13548280, 16257936, 20322420, 27096560, 40644840, 81289680]

約数ペア:

[(1, 81289680), (2, 40644840), (3, 27096560), (4, 20322420), (5, 16257936), (6, 13548280), (8, 10161210), (10, 8128968), (12, 6774140), (15, 5419312), (16, 5080605), (20, 4064484), (24, 3387070), (30, 2709656), (40, 2032242), (48, 1693535), (60, 1354828), (80, 1016121), (120, 677414), (240, 338707)]