128800

素因数分解:

$2^5\times 5^2\times 7^1\times {\mathrm{23}}^1$

素因数の和:50

約数の個数: 72

約数和(自身を含む): 374976

約数和(自身を除く): 246176

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 23, 25, 28, 32, 35, 40, 46, 50, 56, 70, 80, 92, 100, 112, 115, 140, 160, 161, 175, 184, 200, 224, 230, 280, 322, 350, 368, 400, 460, 560, 575, 644, 700, 736, 800, 805, 920, 1120, 1150, 1288, 1400, 1610, 1840, 2300, 2576, 2800, 3220, 3680, 4025, 4600, 5152, 5600, 6440, 8050, 9200, 12880, 16100, 18400, 25760, 32200, 64400, 128800]

約数ペア:

[(1, 128800), (2, 64400), (4, 32200), (5, 25760), (7, 18400), (8, 16100), (10, 12880), (14, 9200), (16, 8050), (20, 6440), (23, 5600), (25, 5152), (28, 4600), (32, 4025), (35, 3680), (40, 3220), (46, 2800), (50, 2576), (56, 2300), (70, 1840), (80, 1610), (92, 1400), (100, 1288), (112, 1150), (115, 1120), (140, 920), (160, 805), (161, 800), (175, 736), (184, 700), (200, 644), (224, 575), (230, 560), (280, 460), (322, 400), (350, 368)]