8388660

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{19973}}^1$

素因数の和:19992

約数の個数: 48

約数和(自身を含む): 26845056

約数和(自身を除く): 18456396

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 19973, 39946, 59919, 79892, 99865, 119838, 139811, 199730, 239676, 279622, 299595, 399460, 419433, 559244, 599190, 699055, 838866, 1198380, 1398110, 1677732, 2097165, 2796220, 4194330, 8388660]

約数ペア:

[(1, 8388660), (2, 4194330), (3, 2796220), (4, 2097165), (5, 1677732), (6, 1398110), (7, 1198380), (10, 838866), (12, 699055), (14, 599190), (15, 559244), (20, 419433), (21, 399460), (28, 299595), (30, 279622), (35, 239676), (42, 199730), (60, 139811), (70, 119838), (84, 99865), (105, 79892), (140, 59919), (210, 39946), (420, 19973)]