68513025

素因数分解:

$3^1\times 5^2\times 7^2\times {\mathrm{103}}^1\times {\mathrm{181}}^1$

素因数の和:311

約数の個数: 72

約数和(自身を含む): 133783104

約数和(自身を除く): 65270079

約数列:

[1, 3, 5, 7, 15, 21, 25, 35, 49, 75, 103, 105, 147, 175, 181, 245, 309, 515, 525, 543, 721, 735, 905, 1225, 1267, 1545, 2163, 2575, 2715, 3605, 3675, 3801, 4525, 5047, 6335, 7725, 8869, 10815, 13575, 15141, 18025, 18643, 19005, 25235, 26607, 31675, 44345, 54075, 55929, 75705, 93215, 95025, 126175, 130501, 133035, 221725, 279645, 378525, 391503, 466075, 652505, 665175, 913507, 1398225, 1957515, 2740521, 3262525, 4567535, 9787575, 13702605, 22837675, 68513025]

約数ペア:

[(1, 68513025), (3, 22837675), (5, 13702605), (7, 9787575), (15, 4567535), (21, 3262525), (25, 2740521), (35, 1957515), (49, 1398225), (75, 913507), (103, 665175), (105, 652505), (147, 466075), (175, 391503), (181, 378525), (245, 279645), (309, 221725), (515, 133035), (525, 130501), (543, 126175), (721, 95025), (735, 93215), (905, 75705), (1225, 55929), (1267, 54075), (1545, 44345), (2163, 31675), (2575, 26607), (2715, 25235), (3605, 19005), (3675, 18643), (3801, 18025), (4525, 15141), (5047, 13575), (6335, 10815), (7725, 8869)]