18753880

素因数分解:

$2^3\times 5^1\times {\mathrm{139}}^1\times {\mathrm{3373}}^1$

素因数の和:3523

約数の個数: 32

約数和(自身を含む): 42512400

約数和(自身を除く): 23758520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 139, 278, 556, 695, 1112, 1390, 2780, 3373, 5560, 6746, 13492, 16865, 26984, 33730, 67460, 134920, 468847, 937694, 1875388, 2344235, 3750776, 4688470, 9376940, 18753880]

約数ペア:

[(1, 18753880), (2, 9376940), (4, 4688470), (5, 3750776), (8, 2344235), (10, 1875388), (20, 937694), (40, 468847), (139, 134920), (278, 67460), (556, 33730), (695, 26984), (1112, 16865), (1390, 13492), (2780, 6746), (3373, 5560)]