2080404008

素因数分解:

$2^3\times {\mathrm{97}}^1\times {\mathrm{997}}^1\times {\mathrm{2689}}^1$

素因数の和:3789

約数の個数: 32

約数和(自身を含む): 3946391400

約数和(自身を除く): 1865987392

約数列:

[1, 2, 4, 8, 97, 194, 388, 776, 997, 1994, 2689, 3988, 5378, 7976, 10756, 21512, 96709, 193418, 260833, 386836, 521666, 773672, 1043332, 2086664, 2680933, 5361866, 10723732, 21447464, 260050501, 520101002, 1040202004, 2080404008]

約数ペア:

[(1, 2080404008), (2, 1040202004), (4, 520101002), (8, 260050501), (97, 21447464), (194, 10723732), (388, 5361866), (776, 2680933), (997, 2086664), (1994, 1043332), (2689, 773672), (3988, 521666), (5378, 386836), (7976, 260833), (10756, 193418), (21512, 96709)]