1680280

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{353}}^1$

素因数の和:388

約数の個数: 64

約数和(自身を含む): 4587840

約数和(自身を除く): 2907560

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 17, 20, 28, 34, 35, 40, 56, 68, 70, 85, 119, 136, 140, 170, 238, 280, 340, 353, 476, 595, 680, 706, 952, 1190, 1412, 1765, 2380, 2471, 2824, 3530, 4760, 4942, 6001, 7060, 9884, 12002, 12355, 14120, 19768, 24004, 24710, 30005, 42007, 48008, 49420, 60010, 84014, 98840, 120020, 168028, 210035, 240040, 336056, 420070, 840140, 1680280]

約数ペア:

[(1, 1680280), (2, 840140), (4, 420070), (5, 336056), (7, 240040), (8, 210035), (10, 168028), (14, 120020), (17, 98840), (20, 84014), (28, 60010), (34, 49420), (35, 48008), (40, 42007), (56, 30005), (68, 24710), (70, 24004), (85, 19768), (119, 14120), (136, 12355), (140, 12002), (170, 9884), (238, 7060), (280, 6001), (340, 4942), (353, 4760), (476, 3530), (595, 2824), (680, 2471), (706, 2380), (952, 1765), (1190, 1412)]