201213880

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{718621}}^1$

素因数の和:718639

約数の個数: 32

約数和(自身を含む): 517407840

約数和(自身を除く): 316193960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 718621, 1437242, 2874484, 3593105, 5030347, 5748968, 7186210, 10060694, 14372420, 20121388, 25151735, 28744840, 40242776, 50303470, 100606940, 201213880]

約数ペア:

[(1, 201213880), (2, 100606940), (4, 50303470), (5, 40242776), (7, 28744840), (8, 25151735), (10, 20121388), (14, 14372420), (20, 10060694), (28, 7186210), (35, 5748968), (40, 5030347), (56, 3593105), (70, 2874484), (140, 1437242), (280, 718621)]