20268675

素因数分解:

$3^2\times 5^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{757}}^1$

素因数の和:797

約数の個数: 72

約数和(自身を含む): 43988256

約数和(自身を除く): 23719581

約数列:

[1, 3, 5, 7, 9, 15, 17, 21, 25, 35, 45, 51, 63, 75, 85, 105, 119, 153, 175, 225, 255, 315, 357, 425, 525, 595, 757, 765, 1071, 1275, 1575, 1785, 2271, 2975, 3785, 3825, 5299, 5355, 6813, 8925, 11355, 12869, 15897, 18925, 26495, 26775, 34065, 38607, 47691, 56775, 64345, 79485, 90083, 115821, 132475, 170325, 193035, 238455, 270249, 321725, 397425, 450415, 579105, 810747, 965175, 1192275, 1351245, 2252075, 2895525, 4053735, 6756225, 20268675]

約数ペア:

[(1, 20268675), (3, 6756225), (5, 4053735), (7, 2895525), (9, 2252075), (15, 1351245), (17, 1192275), (21, 965175), (25, 810747), (35, 579105), (45, 450415), (51, 397425), (63, 321725), (75, 270249), (85, 238455), (105, 193035), (119, 170325), (153, 132475), (175, 115821), (225, 90083), (255, 79485), (315, 64345), (357, 56775), (425, 47691), (525, 38607), (595, 34065), (757, 26775), (765, 26495), (1071, 18925), (1275, 15897), (1575, 12869), (1785, 11355), (2271, 8925), (2975, 6813), (3785, 5355), (3825, 5299)]