28398105

素因数分解:

$3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{463}}^1$

素因数の和:550

約数の個数: 48

約数和(自身を含む): 52116480

約数和(自身を除く): 23718375

約数列:

[1, 3, 5, 9, 15, 29, 45, 47, 87, 141, 145, 235, 261, 423, 435, 463, 705, 1305, 1363, 1389, 2115, 2315, 4089, 4167, 6815, 6945, 12267, 13427, 20445, 20835, 21761, 40281, 61335, 65283, 67135, 108805, 120843, 195849, 201405, 326415, 604215, 631069, 979245, 1893207, 3155345, 5679621, 9466035, 28398105]

約数ペア:

[(1, 28398105), (3, 9466035), (5, 5679621), (9, 3155345), (15, 1893207), (29, 979245), (45, 631069), (47, 604215), (87, 326415), (141, 201405), (145, 195849), (235, 120843), (261, 108805), (423, 67135), (435, 65283), (463, 61335), (705, 40281), (1305, 21761), (1363, 20835), (1389, 20445), (2115, 13427), (2315, 12267), (4089, 6945), (4167, 6815)]