28526440

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{101}}^1\times {\mathrm{307}}^1$

素因数の和:442

約数の個数: 64

約数和(自身を含む): 67858560

約数和(自身を除く): 39332120

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 101, 115, 184, 202, 230, 307, 404, 460, 505, 614, 808, 920, 1010, 1228, 1535, 2020, 2323, 2456, 3070, 4040, 4646, 6140, 7061, 9292, 11615, 12280, 14122, 18584, 23230, 28244, 31007, 35305, 46460, 56488, 62014, 70610, 92920, 124028, 141220, 155035, 248056, 282440, 310070, 620140, 713161, 1240280, 1426322, 2852644, 3565805, 5705288, 7131610, 14263220, 28526440]

約数ペア:

[(1, 28526440), (2, 14263220), (4, 7131610), (5, 5705288), (8, 3565805), (10, 2852644), (20, 1426322), (23, 1240280), (40, 713161), (46, 620140), (92, 310070), (101, 282440), (115, 248056), (184, 155035), (202, 141220), (230, 124028), (307, 92920), (404, 70610), (460, 62014), (505, 56488), (614, 46460), (808, 35305), (920, 31007), (1010, 28244), (1228, 23230), (1535, 18584), (2020, 14122), (2323, 12280), (2456, 11615), (3070, 9292), (4040, 7061), (4646, 6140)]