400120770

素因数分解:

$2^1\times 3^1\times 5^1\times 7^2\times {\mathrm{272191}}^1$

素因数の和:272215

約数の個数: 48

約数和(自身を含む): 1117075968

約数和(自身を除く): 716955198

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 49, 70, 98, 105, 147, 210, 245, 294, 490, 735, 1470, 272191, 544382, 816573, 1360955, 1633146, 1905337, 2721910, 3810674, 4082865, 5716011, 8165730, 9526685, 11432022, 13337359, 19053370, 26674718, 28580055, 40012077, 57160110, 66686795, 80024154, 133373590, 200060385, 400120770]

約数ペア:

[(1, 400120770), (2, 200060385), (3, 133373590), (5, 80024154), (6, 66686795), (7, 57160110), (10, 40012077), (14, 28580055), (15, 26674718), (21, 19053370), (30, 13337359), (35, 11432022), (42, 9526685), (49, 8165730), (70, 5716011), (98, 4082865), (105, 3810674), (147, 2721910), (210, 1905337), (245, 1633146), (294, 1360955), (490, 816573), (735, 544382), (1470, 272191)]