27980090

素因数分解:

$2^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{45869}}^1$

素因数の和:45937

約数の個数: 16

約数和(自身を含む): 51190920

約数和(自身を除く): 23210830

約数列:

[1, 2, 5, 10, 61, 122, 305, 610, 45869, 91738, 229345, 458690, 2798009, 5596018, 13990045, 27980090]

約数ペア:

[(1, 27980090), (2, 13990045), (5, 5596018), (10, 2798009), (61, 458690), (122, 229345), (305, 91738), (610, 45869)]