64980760

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{6577}}^1$

素因数の和:6620

約数の個数: 64

約数和(自身を含む): 165765600

約数和(自身を除く): 100784840

約数列:

[1, 2, 4, 5, 8, 10, 13, 19, 20, 26, 38, 40, 52, 65, 76, 95, 104, 130, 152, 190, 247, 260, 380, 494, 520, 760, 988, 1235, 1976, 2470, 4940, 6577, 9880, 13154, 26308, 32885, 52616, 65770, 85501, 124963, 131540, 171002, 249926, 263080, 342004, 427505, 499852, 624815, 684008, 855010, 999704, 1249630, 1624519, 1710020, 2499260, 3249038, 3420040, 4998520, 6498076, 8122595, 12996152, 16245190, 32490380, 64980760]

約数ペア:

[(1, 64980760), (2, 32490380), (4, 16245190), (5, 12996152), (8, 8122595), (10, 6498076), (13, 4998520), (19, 3420040), (20, 3249038), (26, 2499260), (38, 1710020), (40, 1624519), (52, 1249630), (65, 999704), (76, 855010), (95, 684008), (104, 624815), (130, 499852), (152, 427505), (190, 342004), (247, 263080), (260, 249926), (380, 171002), (494, 131540), (520, 124963), (760, 85501), (988, 65770), (1235, 52616), (1976, 32885), (2470, 26308), (4940, 13154), (6577, 9880)]