66966640

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{3389}}^1$

素因数の和:3434

約数の個数: 80

約数和(自身を含む): 176551200

約数和(自身を除く): 109584560

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 19, 20, 26, 38, 40, 52, 65, 76, 80, 95, 104, 130, 152, 190, 208, 247, 260, 304, 380, 494, 520, 760, 988, 1040, 1235, 1520, 1976, 2470, 3389, 3952, 4940, 6778, 9880, 13556, 16945, 19760, 27112, 33890, 44057, 54224, 64391, 67780, 88114, 128782, 135560, 176228, 220285, 257564, 271120, 321955, 352456, 440570, 515128, 643910, 704912, 837083, 881140, 1030256, 1287820, 1674166, 1762280, 2575640, 3348332, 3524560, 4185415, 5151280, 6696664, 8370830, 13393328, 16741660, 33483320, 66966640]

約数ペア:

[(1, 66966640), (2, 33483320), (4, 16741660), (5, 13393328), (8, 8370830), (10, 6696664), (13, 5151280), (16, 4185415), (19, 3524560), (20, 3348332), (26, 2575640), (38, 1762280), (40, 1674166), (52, 1287820), (65, 1030256), (76, 881140), (80, 837083), (95, 704912), (104, 643910), (130, 515128), (152, 440570), (190, 352456), (208, 321955), (247, 271120), (260, 257564), (304, 220285), (380, 176228), (494, 135560), (520, 128782), (760, 88114), (988, 67780), (1040, 64391), (1235, 54224), (1520, 44057), (1976, 33890), (2470, 27112), (3389, 19760), (3952, 16945), (4940, 13556), (6778, 9880)]