217435520

素因数分解:

$2^7\times 5^1\times {\mathrm{43}}^1\times {\mathrm{7901}}^1$

素因数の和:7963

約数の個数: 64

約数和(自身を含む): 531962640

約数和(自身を除く): 314527120

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 43, 64, 80, 86, 128, 160, 172, 215, 320, 344, 430, 640, 688, 860, 1376, 1720, 2752, 3440, 5504, 6880, 7901, 13760, 15802, 27520, 31604, 39505, 63208, 79010, 126416, 158020, 252832, 316040, 339743, 505664, 632080, 679486, 1011328, 1264160, 1358972, 1698715, 2528320, 2717944, 3397430, 5056640, 5435888, 6794860, 10871776, 13589720, 21743552, 27179440, 43487104, 54358880, 108717760, 217435520]

約数ペア:

[(1, 217435520), (2, 108717760), (4, 54358880), (5, 43487104), (8, 27179440), (10, 21743552), (16, 13589720), (20, 10871776), (32, 6794860), (40, 5435888), (43, 5056640), (64, 3397430), (80, 2717944), (86, 2528320), (128, 1698715), (160, 1358972), (172, 1264160), (215, 1011328), (320, 679486), (344, 632080), (430, 505664), (640, 339743), (688, 316040), (860, 252832), (1376, 158020), (1720, 126416), (2752, 79010), (3440, 63208), (5504, 39505), (6880, 31604), (7901, 27520), (13760, 15802)]