20295705

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{71}}^1$

素因数の和:174

約数の個数: 64

約数和(自身を含む): 37324800

約数和(自身を除く): 17029095

約数列:

[1, 3, 5, 15, 17, 19, 51, 57, 59, 71, 85, 95, 177, 213, 255, 285, 295, 323, 355, 885, 969, 1003, 1065, 1121, 1207, 1349, 1615, 3009, 3363, 3621, 4047, 4189, 4845, 5015, 5605, 6035, 6745, 12567, 15045, 16815, 18105, 19057, 20235, 20945, 22933, 57171, 62835, 68799, 71213, 79591, 95285, 114665, 213639, 238773, 285855, 343995, 356065, 397955, 1068195, 1193865, 1353047, 4059141, 6765235, 20295705]

約数ペア:

[(1, 20295705), (3, 6765235), (5, 4059141), (15, 1353047), (17, 1193865), (19, 1068195), (51, 397955), (57, 356065), (59, 343995), (71, 285855), (85, 238773), (95, 213639), (177, 114665), (213, 95285), (255, 79591), (285, 71213), (295, 68799), (323, 62835), (355, 57171), (885, 22933), (969, 20945), (1003, 20235), (1065, 19057), (1121, 18105), (1207, 16815), (1349, 15045), (1615, 12567), (3009, 6745), (3363, 6035), (3621, 5605), (4047, 5015), (4189, 4845)]