20186145

素因数分解:

$3^3\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{521}}^1$

素因数の和:583

約数の個数: 64

約数和(自身を含む): 42094080

約数和(自身を除く): 21907935

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 41, 45, 63, 105, 123, 135, 189, 205, 287, 315, 369, 521, 615, 861, 945, 1107, 1435, 1563, 1845, 2583, 2605, 3647, 4305, 4689, 5535, 7749, 7815, 10941, 12915, 14067, 18235, 21361, 23445, 32823, 38745, 54705, 64083, 70335, 98469, 106805, 149527, 164115, 192249, 320415, 448581, 492345, 576747, 747635, 961245, 1345743, 2242905, 2883735, 4037229, 6728715, 20186145]

約数ペア:

[(1, 20186145), (3, 6728715), (5, 4037229), (7, 2883735), (9, 2242905), (15, 1345743), (21, 961245), (27, 747635), (35, 576747), (41, 492345), (45, 448581), (63, 320415), (105, 192249), (123, 164115), (135, 149527), (189, 106805), (205, 98469), (287, 70335), (315, 64083), (369, 54705), (521, 38745), (615, 32823), (861, 23445), (945, 21361), (1107, 18235), (1435, 14067), (1563, 12915), (1845, 10941), (2583, 7815), (2605, 7749), (3647, 5535), (4305, 4689)]