20157627350

素因数分解:

$2^1\times 5^2\times 7^2\times {\mathrm{421}}^1\times {\mathrm{19543}}^1$

素因数の和:19990

約数の個数: 72

約数和(自身を含む): 43720357968

約数和(自身を除く): 23562730618

約数列:

[1, 2, 5, 7, 10, 14, 25, 35, 49, 50, 70, 98, 175, 245, 350, 421, 490, 842, 1225, 2105, 2450, 2947, 4210, 5894, 10525, 14735, 19543, 20629, 21050, 29470, 39086, 41258, 73675, 97715, 103145, 136801, 147350, 195430, 206290, 273602, 488575, 515725, 684005, 957607, 977150, 1031450, 1368010, 1915214, 3420025, 4788035, 6840050, 8227603, 9576070, 16455206, 23940175, 41138015, 47880350, 57593221, 82276030, 115186442, 205690075, 287966105, 403152547, 411380150, 575932210, 806305094, 1439830525, 2015762735, 2879661050, 4031525470, 10078813675, 20157627350]

約数ペア:

[(1, 20157627350), (2, 10078813675), (5, 4031525470), (7, 2879661050), (10, 2015762735), (14, 1439830525), (25, 806305094), (35, 575932210), (49, 411380150), (50, 403152547), (70, 287966105), (98, 205690075), (175, 115186442), (245, 82276030), (350, 57593221), (421, 47880350), (490, 41138015), (842, 23940175), (1225, 16455206), (2105, 9576070), (2450, 8227603), (2947, 6840050), (4210, 4788035), (5894, 3420025), (10525, 1915214), (14735, 1368010), (19543, 1031450), (20629, 977150), (21050, 957607), (29470, 684005), (39086, 515725), (41258, 488575), (73675, 273602), (97715, 206290), (103145, 195430), (136801, 147350)]