4399840

素因数分解:

$2^5\times 5^1\times {\mathrm{107}}^1\times {\mathrm{257}}^1$

素因数の和:379

約数の個数: 48

約数和(自身を含む): 10532592

約数和(自身を除く): 6132752

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 107, 160, 214, 257, 428, 514, 535, 856, 1028, 1070, 1285, 1712, 2056, 2140, 2570, 3424, 4112, 4280, 5140, 8224, 8560, 10280, 17120, 20560, 27499, 41120, 54998, 109996, 137495, 219992, 274990, 439984, 549980, 879968, 1099960, 2199920, 4399840]

約数ペア:

[(1, 4399840), (2, 2199920), (4, 1099960), (5, 879968), (8, 549980), (10, 439984), (16, 274990), (20, 219992), (32, 137495), (40, 109996), (80, 54998), (107, 41120), (160, 27499), (214, 20560), (257, 17120), (428, 10280), (514, 8560), (535, 8224), (856, 5140), (1028, 4280), (1070, 4112), (1285, 3424), (1712, 2570), (2056, 2140)]