51158940

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{17401}}^1$

素因数の和:17427

約数の個数: 72

約数和(自身を含む): 166641552

約数和(自身を除く): 115482612

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 84, 98, 105, 140, 147, 196, 210, 245, 294, 420, 490, 588, 735, 980, 1470, 2940, 17401, 34802, 52203, 69604, 87005, 104406, 121807, 174010, 208812, 243614, 261015, 348020, 365421, 487228, 522030, 609035, 730842, 852649, 1044060, 1218070, 1461684, 1705298, 1827105, 2436140, 2557947, 3410596, 3654210, 4263245, 5115894, 7308420, 8526490, 10231788, 12789735, 17052980, 25579470, 51158940]

約数ペア:

[(1, 51158940), (2, 25579470), (3, 17052980), (4, 12789735), (5, 10231788), (6, 8526490), (7, 7308420), (10, 5115894), (12, 4263245), (14, 3654210), (15, 3410596), (20, 2557947), (21, 2436140), (28, 1827105), (30, 1705298), (35, 1461684), (42, 1218070), (49, 1044060), (60, 852649), (70, 730842), (84, 609035), (98, 522030), (105, 487228), (140, 365421), (147, 348020), (196, 261015), (210, 243614), (245, 208812), (294, 174010), (420, 121807), (490, 104406), (588, 87005), (735, 69604), (980, 52203), (1470, 34802), (2940, 17401)]