16814720

素因数分解:

$2^7\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1$

素因数の和:122

約数の個数: 128

約数和(自身を含む): 45239040

約数和(自身を除く): 28424320

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 43, 47, 52, 64, 65, 80, 86, 94, 104, 128, 130, 160, 172, 188, 208, 215, 235, 260, 320, 344, 376, 416, 430, 470, 520, 559, 611, 640, 688, 752, 832, 860, 940, 1040, 1118, 1222, 1376, 1504, 1664, 1720, 1880, 2021, 2080, 2236, 2444, 2752, 2795, 3008, 3055, 3440, 3760, 4042, 4160, 4472, 4888, 5504, 5590, 6016, 6110, 6880, 7520, 8084, 8320, 8944, 9776, 10105, 11180, 12220, 13760, 15040, 16168, 17888, 19552, 20210, 22360, 24440, 26273, 27520, 30080, 32336, 35776, 39104, 40420, 44720, 48880, 52546, 64672, 71552, 78208, 80840, 89440, 97760, 105092, 129344, 131365, 161680, 178880, 195520, 210184, 258688, 262730, 323360, 357760, 391040, 420368, 525460, 646720, 840736, 1050920, 1293440, 1681472, 2101840, 3362944, 4203680, 8407360, 16814720]

約数ペア:

[(1, 16814720), (2, 8407360), (4, 4203680), (5, 3362944), (8, 2101840), (10, 1681472), (13, 1293440), (16, 1050920), (20, 840736), (26, 646720), (32, 525460), (40, 420368), (43, 391040), (47, 357760), (52, 323360), (64, 262730), (65, 258688), (80, 210184), (86, 195520), (94, 178880), (104, 161680), (128, 131365), (130, 129344), (160, 105092), (172, 97760), (188, 89440), (208, 80840), (215, 78208), (235, 71552), (260, 64672), (320, 52546), (344, 48880), (376, 44720), (416, 40420), (430, 39104), (470, 35776), (520, 32336), (559, 30080), (611, 27520), (640, 26273), (688, 24440), (752, 22360), (832, 20210), (860, 19552), (940, 17888), (1040, 16168), (1118, 15040), (1222, 13760), (1376, 12220), (1504, 11180), (1664, 10105), (1720, 9776), (1880, 8944), (2021, 8320), (2080, 8084), (2236, 7520), (2444, 6880), (2752, 6110), (2795, 6016), (3008, 5590), (3055, 5504), (3440, 4888), (3760, 4472), (4042, 4160)]