21840360

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{4919}}^1$

素因数の和:4970

約数の個数: 64

約数和(自身を含む): 67305600

約数和(自身を除く): 45465240

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 37, 40, 60, 74, 111, 120, 148, 185, 222, 296, 370, 444, 555, 740, 888, 1110, 1480, 2220, 4440, 4919, 9838, 14757, 19676, 24595, 29514, 39352, 49190, 59028, 73785, 98380, 118056, 147570, 182003, 196760, 295140, 364006, 546009, 590280, 728012, 910015, 1092018, 1456024, 1820030, 2184036, 2730045, 3640060, 4368072, 5460090, 7280120, 10920180, 21840360]

約数ペア:

[(1, 21840360), (2, 10920180), (3, 7280120), (4, 5460090), (5, 4368072), (6, 3640060), (8, 2730045), (10, 2184036), (12, 1820030), (15, 1456024), (20, 1092018), (24, 910015), (30, 728012), (37, 590280), (40, 546009), (60, 364006), (74, 295140), (111, 196760), (120, 182003), (148, 147570), (185, 118056), (222, 98380), (296, 73785), (370, 59028), (444, 49190), (555, 39352), (740, 29514), (888, 24595), (1110, 19676), (1480, 14757), (2220, 9838), (4440, 4919)]