2018808560

素因数分解:

$2^4\times 5^1\times {\mathrm{25235107}}^1$

素因数の和:25235120

約数の個数: 20

約数和(自身を含む): 4693730088

約数和(自身を除く): 2674921528

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 25235107, 50470214, 100940428, 126175535, 201880856, 252351070, 403761712, 504702140, 1009404280, 2018808560]

約数ペア:

[(1, 2018808560), (2, 1009404280), (4, 504702140), (5, 403761712), (8, 252351070), (10, 201880856), (16, 126175535), (20, 100940428), (40, 50470214), (80, 25235107)]