1247960

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{4457}}^1$

素因数の和:4475

約数の個数: 32

約数和(自身を含む): 3209760

約数和(自身を除く): 1961800

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 4457, 8914, 17828, 22285, 31199, 35656, 44570, 62398, 89140, 124796, 155995, 178280, 249592, 311990, 623980, 1247960]

約数ペア:

[(1, 1247960), (2, 623980), (4, 311990), (5, 249592), (7, 178280), (8, 155995), (10, 124796), (14, 89140), (20, 62398), (28, 44570), (35, 35656), (40, 31199), (56, 22285), (70, 17828), (140, 8914), (280, 4457)]