1990157295

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{37}}^1\times {\mathrm{73181}}^1$

素因数の和:73240

約数の個数: 48

約数和(自身を含む): 3804293088

約数和(自身を除く): 1814135793

約数列:

[1, 3, 5, 7, 15, 21, 35, 37, 49, 105, 111, 147, 185, 245, 259, 555, 735, 777, 1295, 1813, 3885, 5439, 9065, 27195, 73181, 219543, 365905, 512267, 1097715, 1536801, 2561335, 2707697, 3585869, 7684005, 8123091, 10757607, 13538485, 17929345, 18953879, 40615455, 53788035, 56861637, 94769395, 132677153, 284308185, 398031459, 663385765, 1990157295]

約数ペア:

[(1, 1990157295), (3, 663385765), (5, 398031459), (7, 284308185), (15, 132677153), (21, 94769395), (35, 56861637), (37, 53788035), (49, 40615455), (105, 18953879), (111, 17929345), (147, 13538485), (185, 10757607), (245, 8123091), (259, 7684005), (555, 3585869), (735, 2707697), (777, 2561335), (1295, 1536801), (1813, 1097715), (3885, 512267), (5439, 365905), (9065, 219543), (27195, 73181)]