679901418

素因数分解:

$2^1\times 3^3\times 7^1\times {\mathrm{37}}^1\times {\mathrm{173}}^1\times {\mathrm{281}}^1$

素因数の和:509

約数の個数: 128

約数和(自身を含む): 1790000640

約数和(自身を除く): 1110099222

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 37, 42, 54, 63, 74, 111, 126, 173, 189, 222, 259, 281, 333, 346, 378, 518, 519, 562, 666, 777, 843, 999, 1038, 1211, 1554, 1557, 1686, 1967, 1998, 2331, 2422, 2529, 3114, 3633, 3934, 4662, 4671, 5058, 5901, 6401, 6993, 7266, 7587, 9342, 10397, 10899, 11802, 12802, 13986, 15174, 17703, 19203, 20794, 21798, 31191, 32697, 35406, 38406, 44807, 48613, 53109, 57609, 62382, 65394, 72779, 89614, 93573, 97226, 106218, 115218, 134421, 145558, 145839, 172827, 187146, 218337, 268842, 280719, 291678, 340291, 345654, 403263, 436674, 437517, 561438, 655011, 680582, 806526, 875034, 1020873, 1209789, 1310022, 1312551, 1798681, 1965033, 2041746, 2419578, 2625102, 3062619, 3597362, 3930066, 5396043, 6125238, 9187857, 10792086, 12590767, 16188129, 18375714, 25181534, 32376258, 37772301, 48564387, 75544602, 97128774, 113316903, 226633806, 339950709, 679901418]

約数ペア:

[(1, 679901418), (2, 339950709), (3, 226633806), (6, 113316903), (7, 97128774), (9, 75544602), (14, 48564387), (18, 37772301), (21, 32376258), (27, 25181534), (37, 18375714), (42, 16188129), (54, 12590767), (63, 10792086), (74, 9187857), (111, 6125238), (126, 5396043), (173, 3930066), (189, 3597362), (222, 3062619), (259, 2625102), (281, 2419578), (333, 2041746), (346, 1965033), (378, 1798681), (518, 1312551), (519, 1310022), (562, 1209789), (666, 1020873), (777, 875034), (843, 806526), (999, 680582), (1038, 655011), (1211, 561438), (1554, 437517), (1557, 436674), (1686, 403263), (1967, 345654), (1998, 340291), (2331, 291678), (2422, 280719), (2529, 268842), (3114, 218337), (3633, 187146), (3934, 172827), (4662, 145839), (4671, 145558), (5058, 134421), (5901, 115218), (6401, 106218), (6993, 97226), (7266, 93573), (7587, 89614), (9342, 72779), (10397, 65394), (10899, 62382), (11802, 57609), (12802, 53109), (13986, 48613), (15174, 44807), (17703, 38406), (19203, 35406), (20794, 32697), (21798, 31191)]