1390492040

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{121123}}^1$

素因数の和:121182

約数の個数: 64

約数和(自身を含む): 3662789760

約数和(自身を除く): 2272297720

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 41, 56, 70, 82, 140, 164, 205, 280, 287, 328, 410, 574, 820, 1148, 1435, 1640, 2296, 2870, 5740, 11480, 121123, 242246, 484492, 605615, 847861, 968984, 1211230, 1695722, 2422460, 3391444, 4239305, 4844920, 4966043, 6782888, 8478610, 9932086, 16957220, 19864172, 24830215, 33914440, 34762301, 39728344, 49660430, 69524602, 99320860, 139049204, 173811505, 198641720, 278098408, 347623010, 695246020, 1390492040]

約数ペア:

[(1, 1390492040), (2, 695246020), (4, 347623010), (5, 278098408), (7, 198641720), (8, 173811505), (10, 139049204), (14, 99320860), (20, 69524602), (28, 49660430), (35, 39728344), (40, 34762301), (41, 33914440), (56, 24830215), (70, 19864172), (82, 16957220), (140, 9932086), (164, 8478610), (205, 6782888), (280, 4966043), (287, 4844920), (328, 4239305), (410, 3391444), (574, 2422460), (820, 1695722), (1148, 1211230), (1435, 968984), (1640, 847861), (2296, 605615), (2870, 484492), (5740, 242246), (11480, 121123)]