289348520

素因数分解:

$2^3\times 5^1\times {\mathrm{211}}^1\times {\mathrm{34283}}^1$

素因数の和:34505

約数の個数: 32

約数和(自身を含む): 654138720

約数和(自身を除く): 364790200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 211, 422, 844, 1055, 1688, 2110, 4220, 8440, 34283, 68566, 137132, 171415, 274264, 342830, 685660, 1371320, 7233713, 14467426, 28934852, 36168565, 57869704, 72337130, 144674260, 289348520]

約数ペア:

[(1, 289348520), (2, 144674260), (4, 72337130), (5, 57869704), (8, 36168565), (10, 28934852), (20, 14467426), (40, 7233713), (211, 1371320), (422, 685660), (844, 342830), (1055, 274264), (1688, 171415), (2110, 137132), (4220, 68566), (8440, 34283)]