215566760

素因数分解:

$2^3\times 5^1\times {\mathrm{137}}^1\times {\mathrm{139}}^1\times {\mathrm{283}}^1$

素因数の和:570

約数の個数: 64

約数和(自身を含む): 493819200

約数和(自身を除く): 278252440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 137, 139, 274, 278, 283, 548, 556, 566, 685, 695, 1096, 1112, 1132, 1370, 1390, 1415, 2264, 2740, 2780, 2830, 5480, 5560, 5660, 11320, 19043, 38086, 38771, 39337, 76172, 77542, 78674, 95215, 152344, 155084, 157348, 190430, 193855, 196685, 310168, 314696, 380860, 387710, 393370, 761720, 775420, 786740, 1550840, 1573480, 5389169, 10778338, 21556676, 26945845, 43113352, 53891690, 107783380, 215566760]

約数ペア:

[(1, 215566760), (2, 107783380), (4, 53891690), (5, 43113352), (8, 26945845), (10, 21556676), (20, 10778338), (40, 5389169), (137, 1573480), (139, 1550840), (274, 786740), (278, 775420), (283, 761720), (548, 393370), (556, 387710), (566, 380860), (685, 314696), (695, 310168), (1096, 196685), (1112, 193855), (1132, 190430), (1370, 157348), (1390, 155084), (1415, 152344), (2264, 95215), (2740, 78674), (2780, 77542), (2830, 76172), (5480, 39337), (5560, 38771), (5660, 38086), (11320, 19043)]