215575780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{66949}}^1$

素因数の和:66988

約数の個数: 48

約数和(自身を含む): 539884800

約数和(自身を除く): 324309020

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 28, 35, 46, 70, 92, 115, 140, 161, 230, 322, 460, 644, 805, 1610, 3220, 66949, 133898, 267796, 334745, 468643, 669490, 937286, 1338980, 1539827, 1874572, 2343215, 3079654, 4686430, 6159308, 7699135, 9372860, 10778789, 15398270, 21557578, 30796540, 43115156, 53893945, 107787890, 215575780]

約数ペア:

[(1, 215575780), (2, 107787890), (4, 53893945), (5, 43115156), (7, 30796540), (10, 21557578), (14, 15398270), (20, 10778789), (23, 9372860), (28, 7699135), (35, 6159308), (46, 4686430), (70, 3079654), (92, 2343215), (115, 1874572), (140, 1539827), (161, 1338980), (230, 937286), (322, 669490), (460, 468643), (644, 334745), (805, 267796), (1610, 133898), (3220, 66949)]