16519540

素因数分解:

$2^2\times 5^1\times {\mathrm{157}}^1\times {\mathrm{5261}}^1$

素因数の和:5427

約数の個数: 24

約数和(自身を含む): 34918632

約数和(自身を除く): 18399092

約数列:

[1, 2, 4, 5, 10, 20, 157, 314, 628, 785, 1570, 3140, 5261, 10522, 21044, 26305, 52610, 105220, 825977, 1651954, 3303908, 4129885, 8259770, 16519540]

約数ペア:

[(1, 16519540), (2, 8259770), (4, 4129885), (5, 3303908), (10, 1651954), (20, 825977), (157, 105220), (314, 52610), (628, 26305), (785, 21044), (1570, 10522), (3140, 5261)]