3980080

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{89}}^1$

素因数の和:158

約数の個数: 80

約数和(自身を含む): 10311840

約数和(自身を除く): 6331760

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 43, 52, 65, 80, 86, 89, 104, 130, 172, 178, 208, 215, 260, 344, 356, 430, 445, 520, 559, 688, 712, 860, 890, 1040, 1118, 1157, 1424, 1720, 1780, 2236, 2314, 2795, 3440, 3560, 3827, 4472, 4628, 5590, 5785, 7120, 7654, 8944, 9256, 11180, 11570, 15308, 18512, 19135, 22360, 23140, 30616, 38270, 44720, 46280, 49751, 61232, 76540, 92560, 99502, 153080, 199004, 248755, 306160, 398008, 497510, 796016, 995020, 1990040, 3980080]

約数ペア:

[(1, 3980080), (2, 1990040), (4, 995020), (5, 796016), (8, 497510), (10, 398008), (13, 306160), (16, 248755), (20, 199004), (26, 153080), (40, 99502), (43, 92560), (52, 76540), (65, 61232), (80, 49751), (86, 46280), (89, 44720), (104, 38270), (130, 30616), (172, 23140), (178, 22360), (208, 19135), (215, 18512), (260, 15308), (344, 11570), (356, 11180), (430, 9256), (445, 8944), (520, 7654), (559, 7120), (688, 5785), (712, 5590), (860, 4628), (890, 4472), (1040, 3827), (1118, 3560), (1157, 3440), (1424, 2795), (1720, 2314), (1780, 2236)]