13857980

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{307}}^1$

素因数の和:414

約数の個数: 48

約数和(自身を含む): 30477216

約数和(自身を除く): 16619236

約数列:

[1, 2, 4, 5, 10, 20, 37, 61, 74, 122, 148, 185, 244, 305, 307, 370, 610, 614, 740, 1220, 1228, 1535, 2257, 3070, 4514, 6140, 9028, 11285, 11359, 18727, 22570, 22718, 37454, 45140, 45436, 56795, 74908, 93635, 113590, 187270, 227180, 374540, 692899, 1385798, 2771596, 3464495, 6928990, 13857980]

約数ペア:

[(1, 13857980), (2, 6928990), (4, 3464495), (5, 2771596), (10, 1385798), (20, 692899), (37, 374540), (61, 227180), (74, 187270), (122, 113590), (148, 93635), (185, 74908), (244, 56795), (305, 45436), (307, 45140), (370, 37454), (610, 22718), (614, 22570), (740, 18727), (1220, 11359), (1228, 11285), (1535, 9028), (2257, 6140), (3070, 4514)]