217433860

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{1553099}}^1$

素因数の和:1553115

約数の個数: 24

約数和(自身を含む): 521841600

約数和(自身を除く): 304407740

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 1553099, 3106198, 6212396, 7765495, 10871693, 15530990, 21743386, 31061980, 43486772, 54358465, 108716930, 217433860]

約数ペア:

[(1, 217433860), (2, 108716930), (4, 54358465), (5, 43486772), (7, 31061980), (10, 21743386), (14, 15530990), (20, 10871693), (28, 7765495), (35, 6212396), (70, 3106198), (140, 1553099)]