1420720

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{59}}^1$

素因数の和:122

約数の個数: 80

約数和(自身を含む): 3928320

約数和(自身を除く): 2507600

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 43, 56, 59, 70, 80, 86, 112, 118, 140, 172, 215, 236, 280, 295, 301, 344, 413, 430, 472, 560, 590, 602, 688, 826, 860, 944, 1180, 1204, 1505, 1652, 1720, 2065, 2360, 2408, 2537, 3010, 3304, 3440, 4130, 4720, 4816, 5074, 6020, 6608, 8260, 10148, 12040, 12685, 16520, 17759, 20296, 24080, 25370, 33040, 35518, 40592, 50740, 71036, 88795, 101480, 142072, 177590, 202960, 284144, 355180, 710360, 1420720]

約数ペア:

[(1, 1420720), (2, 710360), (4, 355180), (5, 284144), (7, 202960), (8, 177590), (10, 142072), (14, 101480), (16, 88795), (20, 71036), (28, 50740), (35, 40592), (40, 35518), (43, 33040), (56, 25370), (59, 24080), (70, 20296), (80, 17759), (86, 16520), (112, 12685), (118, 12040), (140, 10148), (172, 8260), (215, 6608), (236, 6020), (280, 5074), (295, 4816), (301, 4720), (344, 4130), (413, 3440), (430, 3304), (472, 3010), (560, 2537), (590, 2408), (602, 2360), (688, 2065), (826, 1720), (860, 1652), (944, 1505), (1180, 1204)]