30145040

素因数分解:

$2^4\times 5^1\times {\mathrm{109}}^1\times {\mathrm{3457}}^1$

素因数の和:3579

約数の個数: 40

約数和(自身を含む): 70750680

約数和(自身を除く): 40605640

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 109, 218, 436, 545, 872, 1090, 1744, 2180, 3457, 4360, 6914, 8720, 13828, 17285, 27656, 34570, 55312, 69140, 138280, 276560, 376813, 753626, 1507252, 1884065, 3014504, 3768130, 6029008, 7536260, 15072520, 30145040]

約数ペア:

[(1, 30145040), (2, 15072520), (4, 7536260), (5, 6029008), (8, 3768130), (10, 3014504), (16, 1884065), (20, 1507252), (40, 753626), (80, 376813), (109, 276560), (218, 138280), (436, 69140), (545, 55312), (872, 34570), (1090, 27656), (1744, 17285), (2180, 13828), (3457, 8720), (4360, 6914)]