2908520

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{89}}^1$

素因数の和:162

約数の個数: 64

約数和(自身を含む): 7128000

約数和(自身を除く): 4219480

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 43, 76, 86, 89, 95, 152, 172, 178, 190, 215, 344, 356, 380, 430, 445, 712, 760, 817, 860, 890, 1634, 1691, 1720, 1780, 3268, 3382, 3560, 3827, 4085, 6536, 6764, 7654, 8170, 8455, 13528, 15308, 16340, 16910, 19135, 30616, 32680, 33820, 38270, 67640, 72713, 76540, 145426, 153080, 290852, 363565, 581704, 727130, 1454260, 2908520]

約数ペア:

[(1, 2908520), (2, 1454260), (4, 727130), (5, 581704), (8, 363565), (10, 290852), (19, 153080), (20, 145426), (38, 76540), (40, 72713), (43, 67640), (76, 38270), (86, 33820), (89, 32680), (95, 30616), (152, 19135), (172, 16910), (178, 16340), (190, 15308), (215, 13528), (344, 8455), (356, 8170), (380, 7654), (430, 6764), (445, 6536), (712, 4085), (760, 3827), (817, 3560), (860, 3382), (890, 3268), (1634, 1780), (1691, 1720)]