28629520

素因数分解:

$2^4\times 5^1\times {\mathrm{89}}^1\times {\mathrm{4021}}^1$

素因数の和:4123

約数の個数: 40

約数和(自身を含む): 67328280

約数和(自身を除く): 38698760

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 89, 178, 356, 445, 712, 890, 1424, 1780, 3560, 4021, 7120, 8042, 16084, 20105, 32168, 40210, 64336, 80420, 160840, 321680, 357869, 715738, 1431476, 1789345, 2862952, 3578690, 5725904, 7157380, 14314760, 28629520]

約数ペア:

[(1, 28629520), (2, 14314760), (4, 7157380), (5, 5725904), (8, 3578690), (10, 2862952), (16, 1789345), (20, 1431476), (40, 715738), (80, 357869), (89, 321680), (178, 160840), (356, 80420), (445, 64336), (712, 40210), (890, 32168), (1424, 20105), (1780, 16084), (3560, 8042), (4021, 7120)]