15920320

素因数分解:

$2^6\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{89}}^1$

素因数の和:162

約数の個数: 112

約数和(自身を含む): 42245280

約数和(自身を除く): 26324960

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 43, 52, 64, 65, 80, 86, 89, 104, 130, 160, 172, 178, 208, 215, 260, 320, 344, 356, 416, 430, 445, 520, 559, 688, 712, 832, 860, 890, 1040, 1118, 1157, 1376, 1424, 1720, 1780, 2080, 2236, 2314, 2752, 2795, 2848, 3440, 3560, 3827, 4160, 4472, 4628, 5590, 5696, 5785, 6880, 7120, 7654, 8944, 9256, 11180, 11570, 13760, 14240, 15308, 17888, 18512, 19135, 22360, 23140, 28480, 30616, 35776, 37024, 38270, 44720, 46280, 49751, 61232, 74048, 76540, 89440, 92560, 99502, 122464, 153080, 178880, 185120, 199004, 244928, 248755, 306160, 370240, 398008, 497510, 612320, 796016, 995020, 1224640, 1592032, 1990040, 3184064, 3980080, 7960160, 15920320]

約数ペア:

[(1, 15920320), (2, 7960160), (4, 3980080), (5, 3184064), (8, 1990040), (10, 1592032), (13, 1224640), (16, 995020), (20, 796016), (26, 612320), (32, 497510), (40, 398008), (43, 370240), (52, 306160), (64, 248755), (65, 244928), (80, 199004), (86, 185120), (89, 178880), (104, 153080), (130, 122464), (160, 99502), (172, 92560), (178, 89440), (208, 76540), (215, 74048), (260, 61232), (320, 49751), (344, 46280), (356, 44720), (416, 38270), (430, 37024), (445, 35776), (520, 30616), (559, 28480), (688, 23140), (712, 22360), (832, 19135), (860, 18512), (890, 17888), (1040, 15308), (1118, 14240), (1157, 13760), (1376, 11570), (1424, 11180), (1720, 9256), (1780, 8944), (2080, 7654), (2236, 7120), (2314, 6880), (2752, 5785), (2795, 5696), (2848, 5590), (3440, 4628), (3560, 4472), (3827, 4160)]