289668520

素因数分解:

$2^3\times 5^1\times {\mathrm{47}}^1\times {\mathrm{154079}}^1$

素因数の和:154137

約数の個数: 32

約数和(自身を含む): 665625600

約数和(自身を除く): 375957080

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 47, 94, 188, 235, 376, 470, 940, 1880, 154079, 308158, 616316, 770395, 1232632, 1540790, 3081580, 6163160, 7241713, 14483426, 28966852, 36208565, 57933704, 72417130, 144834260, 289668520]

約数ペア:

[(1, 289668520), (2, 144834260), (4, 72417130), (5, 57933704), (8, 36208565), (10, 28966852), (20, 14483426), (40, 7241713), (47, 6163160), (94, 3081580), (188, 1540790), (235, 1232632), (376, 770395), (470, 616316), (940, 308158), (1880, 154079)]