81885860

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{83557}}^1$

素因数の和:83580

約数の個数: 36

約数和(自身を含む): 200037852

約数和(自身を除く): 118151992

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 83557, 167114, 334228, 417785, 584899, 835570, 1169798, 1671140, 2339596, 2924495, 4094293, 5848990, 8188586, 11697980, 16377172, 20471465, 40942930, 81885860]

約数ペア:

[(1, 81885860), (2, 40942930), (4, 20471465), (5, 16377172), (7, 11697980), (10, 8188586), (14, 5848990), (20, 4094293), (28, 2924495), (35, 2339596), (49, 1671140), (70, 1169798), (98, 835570), (140, 584899), (196, 417785), (245, 334228), (490, 167114), (980, 83557)]