19841490

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{1709}}^1$

素因数の和:1768

約数の個数: 64

約数和(自身を含む): 54172800

約数和(自身を除く): 34331310

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 43, 45, 54, 86, 90, 129, 135, 215, 258, 270, 387, 430, 645, 774, 1161, 1290, 1709, 1935, 2322, 3418, 3870, 5127, 5805, 8545, 10254, 11610, 15381, 17090, 25635, 30762, 46143, 51270, 73487, 76905, 92286, 146974, 153810, 220461, 230715, 367435, 440922, 461430, 661383, 734870, 1102305, 1322766, 1984149, 2204610, 3306915, 3968298, 6613830, 9920745, 19841490]

約数ペア:

[(1, 19841490), (2, 9920745), (3, 6613830), (5, 3968298), (6, 3306915), (9, 2204610), (10, 1984149), (15, 1322766), (18, 1102305), (27, 734870), (30, 661383), (43, 461430), (45, 440922), (54, 367435), (86, 230715), (90, 220461), (129, 153810), (135, 146974), (215, 92286), (258, 76905), (270, 73487), (387, 51270), (430, 46143), (645, 30762), (774, 25635), (1161, 17090), (1290, 15381), (1709, 11610), (1935, 10254), (2322, 8545), (3418, 5805), (3870, 5127)]