66406720

素因数分解:

$2^6\times 5^1\times {\mathrm{207521}}^1$

素因数の和:207538

約数の個数: 28

約数和(自身を含む): 158131764

約数和(自身を除く): 91725044

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 207521, 415042, 830084, 1037605, 1660168, 2075210, 3320336, 4150420, 6640672, 8300840, 13281344, 16601680, 33203360, 66406720]

約数ペア:

[(1, 66406720), (2, 33203360), (4, 16601680), (5, 13281344), (8, 8300840), (10, 6640672), (16, 4150420), (20, 3320336), (32, 2075210), (40, 1660168), (64, 1037605), (80, 830084), (160, 415042), (320, 207521)]