840180290

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{131}}^1\times {\mathrm{1217}}^1$

素因数の和:1403

約数の個数: 64

約数和(自身を含む): 1666925568

約数和(自身を除く): 826745278

約数列:

[1, 2, 5, 10, 17, 31, 34, 62, 85, 131, 155, 170, 262, 310, 527, 655, 1054, 1217, 1310, 2227, 2434, 2635, 4061, 4454, 5270, 6085, 8122, 11135, 12170, 20305, 20689, 22270, 37727, 40610, 41378, 69037, 75454, 103445, 138074, 159427, 188635, 206890, 318854, 345185, 377270, 641359, 690370, 797135, 1282718, 1594270, 2710259, 3206795, 4942237, 5420518, 6413590, 9884474, 13551295, 24711185, 27102590, 49422370, 84018029, 168036058, 420090145, 840180290]

約数ペア:

[(1, 840180290), (2, 420090145), (5, 168036058), (10, 84018029), (17, 49422370), (31, 27102590), (34, 24711185), (62, 13551295), (85, 9884474), (131, 6413590), (155, 5420518), (170, 4942237), (262, 3206795), (310, 2710259), (527, 1594270), (655, 1282718), (1054, 797135), (1217, 690370), (1310, 641359), (2227, 377270), (2434, 345185), (2635, 318854), (4061, 206890), (4454, 188635), (5270, 159427), (6085, 138074), (8122, 103445), (11135, 75454), (12170, 69037), (20305, 41378), (20689, 40610), (22270, 37727)]