209759445

素因数分解:

$3^2\times 5^1\times 7^2\times {\mathrm{251}}^1\times {\mathrm{379}}^1$

素因数の和:655

約数の個数: 72

約数和(自身を含む): 425748960

約数和(自身を除く): 215989515

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 49, 63, 105, 147, 245, 251, 315, 379, 441, 735, 753, 1137, 1255, 1757, 1895, 2205, 2259, 2653, 3411, 3765, 5271, 5685, 7959, 8785, 11295, 12299, 13265, 15813, 17055, 18571, 23877, 26355, 36897, 39795, 55713, 61495, 79065, 92855, 95129, 110691, 119385, 167139, 184485, 278565, 285387, 475645, 553455, 665903, 835695, 856161, 1426935, 1997709, 3329515, 4280805, 4661321, 5993127, 9988545, 13983963, 23306605, 29965635, 41951889, 69919815, 209759445]

約数ペア:

[(1, 209759445), (3, 69919815), (5, 41951889), (7, 29965635), (9, 23306605), (15, 13983963), (21, 9988545), (35, 5993127), (45, 4661321), (49, 4280805), (63, 3329515), (105, 1997709), (147, 1426935), (245, 856161), (251, 835695), (315, 665903), (379, 553455), (441, 475645), (735, 285387), (753, 278565), (1137, 184485), (1255, 167139), (1757, 119385), (1895, 110691), (2205, 95129), (2259, 92855), (2653, 79065), (3411, 61495), (3765, 55713), (5271, 39795), (5685, 36897), (7959, 26355), (8785, 23877), (11295, 18571), (12299, 17055), (13265, 15813)]