81305770

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{1901}}^1$

素因数の和:1975

約数の個数: 64

約数和(自身を含む): 184052736

約数和(自身を除く): 102746966

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 35, 47, 65, 70, 91, 94, 130, 182, 235, 329, 455, 470, 611, 658, 910, 1222, 1645, 1901, 3055, 3290, 3802, 4277, 6110, 8554, 9505, 13307, 19010, 21385, 24713, 26614, 42770, 49426, 66535, 89347, 123565, 133070, 172991, 178694, 247130, 345982, 446735, 625429, 864955, 893470, 1161511, 1250858, 1729910, 2323022, 3127145, 5807555, 6254290, 8130577, 11615110, 16261154, 40652885, 81305770]

約数ペア:

[(1, 81305770), (2, 40652885), (5, 16261154), (7, 11615110), (10, 8130577), (13, 6254290), (14, 5807555), (26, 3127145), (35, 2323022), (47, 1729910), (65, 1250858), (70, 1161511), (91, 893470), (94, 864955), (130, 625429), (182, 446735), (235, 345982), (329, 247130), (455, 178694), (470, 172991), (611, 133070), (658, 123565), (910, 89347), (1222, 66535), (1645, 49426), (1901, 42770), (3055, 26614), (3290, 24713), (3802, 21385), (4277, 19010), (6110, 13307), (8554, 9505)]