629577980

素因数分解:

$2^2\times 5^1\times {\mathrm{1399}}^1\times {\mathrm{22501}}^1$

素因数の和:23909

約数の個数: 24

約数和(自身を含む): 1323117600

約数和(自身を除く): 693539620

約数列:

[1, 2, 4, 5, 10, 20, 1399, 2798, 5596, 6995, 13990, 22501, 27980, 45002, 90004, 112505, 225010, 450020, 31478899, 62957798, 125915596, 157394495, 314788990, 629577980]

約数ペア:

[(1, 629577980), (2, 314788990), (4, 157394495), (5, 125915596), (10, 62957798), (20, 31478899), (1399, 450020), (2798, 225010), (5596, 112505), (6995, 90004), (13990, 45002), (22501, 27980)]