208040120

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{331}}^1\times {\mathrm{827}}^1$

素因数の和:1188

約数の個数: 64

約数和(自身を含む): 494812800

約数和(自身を除く): 286772680

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 331, 380, 662, 760, 827, 1324, 1654, 1655, 2648, 3308, 3310, 4135, 6289, 6616, 6620, 8270, 12578, 13240, 15713, 16540, 25156, 31426, 31445, 33080, 50312, 62852, 62890, 78565, 125704, 125780, 157130, 251560, 273737, 314260, 547474, 628520, 1094948, 1368685, 2189896, 2737370, 5201003, 5474740, 10402006, 10949480, 20804012, 26005015, 41608024, 52010030, 104020060, 208040120]

約数ペア:

[(1, 208040120), (2, 104020060), (4, 52010030), (5, 41608024), (8, 26005015), (10, 20804012), (19, 10949480), (20, 10402006), (38, 5474740), (40, 5201003), (76, 2737370), (95, 2189896), (152, 1368685), (190, 1094948), (331, 628520), (380, 547474), (662, 314260), (760, 273737), (827, 251560), (1324, 157130), (1654, 125780), (1655, 125704), (2648, 78565), (3308, 62890), (3310, 62852), (4135, 50312), (6289, 33080), (6616, 31445), (6620, 31426), (8270, 25156), (12578, 16540), (13240, 15713)]