721000056

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{6823}}^1$

素因数の和:6893

約数の個数: 128

約数和(自身を含む): 2240455680

約数和(自身を除く): 1519455624

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 17, 21, 24, 28, 34, 37, 42, 51, 56, 68, 74, 84, 102, 111, 119, 136, 148, 168, 204, 222, 238, 259, 296, 357, 408, 444, 476, 518, 629, 714, 777, 888, 952, 1036, 1258, 1428, 1554, 1887, 2072, 2516, 2856, 3108, 3774, 4403, 5032, 6216, 6823, 7548, 8806, 13209, 13646, 15096, 17612, 20469, 26418, 27292, 35224, 40938, 47761, 52836, 54584, 81876, 95522, 105672, 115991, 143283, 163752, 191044, 231982, 252451, 286566, 347973, 382088, 463964, 504902, 573132, 695946, 757353, 811937, 927928, 1009804, 1146264, 1391892, 1514706, 1623874, 1767157, 2019608, 2435811, 2783784, 3029412, 3247748, 3534314, 4291667, 4871622, 5301471, 6058824, 6495496, 7068628, 8583334, 9743244, 10602942, 12875001, 14137256, 17166668, 19486488, 21205884, 25750002, 30041669, 34333336, 42411768, 51500004, 60083338, 90125007, 103000008, 120166676, 180250014, 240333352, 360500028, 721000056]

約数ペア:

[(1, 721000056), (2, 360500028), (3, 240333352), (4, 180250014), (6, 120166676), (7, 103000008), (8, 90125007), (12, 60083338), (14, 51500004), (17, 42411768), (21, 34333336), (24, 30041669), (28, 25750002), (34, 21205884), (37, 19486488), (42, 17166668), (51, 14137256), (56, 12875001), (68, 10602942), (74, 9743244), (84, 8583334), (102, 7068628), (111, 6495496), (119, 6058824), (136, 5301471), (148, 4871622), (168, 4291667), (204, 3534314), (222, 3247748), (238, 3029412), (259, 2783784), (296, 2435811), (357, 2019608), (408, 1767157), (444, 1623874), (476, 1514706), (518, 1391892), (629, 1146264), (714, 1009804), (777, 927928), (888, 811937), (952, 757353), (1036, 695946), (1258, 573132), (1428, 504902), (1554, 463964), (1887, 382088), (2072, 347973), (2516, 286566), (2856, 252451), (3108, 231982), (3774, 191044), (4403, 163752), (5032, 143283), (6216, 115991), (6823, 105672), (7548, 95522), (8806, 81876), (13209, 54584), (13646, 52836), (15096, 47761), (17612, 40938), (20469, 35224), (26418, 27292)]