20520240

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{6577}}^1$

素因数の和:6606

約数の個数: 80

約数和(自身を含む): 68516448

約数和(自身を除く): 47996208

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 39, 40, 48, 52, 60, 65, 78, 80, 104, 120, 130, 156, 195, 208, 240, 260, 312, 390, 520, 624, 780, 1040, 1560, 3120, 6577, 13154, 19731, 26308, 32885, 39462, 52616, 65770, 78924, 85501, 98655, 105232, 131540, 157848, 171002, 197310, 256503, 263080, 315696, 342004, 394620, 427505, 513006, 526160, 684008, 789240, 855010, 1026012, 1282515, 1368016, 1578480, 1710020, 2052024, 2565030, 3420040, 4104048, 5130060, 6840080, 10260120, 20520240]

約数ペア:

[(1, 20520240), (2, 10260120), (3, 6840080), (4, 5130060), (5, 4104048), (6, 3420040), (8, 2565030), (10, 2052024), (12, 1710020), (13, 1578480), (15, 1368016), (16, 1282515), (20, 1026012), (24, 855010), (26, 789240), (30, 684008), (39, 526160), (40, 513006), (48, 427505), (52, 394620), (60, 342004), (65, 315696), (78, 263080), (80, 256503), (104, 197310), (120, 171002), (130, 157848), (156, 131540), (195, 105232), (208, 98655), (240, 85501), (260, 78924), (312, 65770), (390, 52616), (520, 39462), (624, 32885), (780, 26308), (1040, 19731), (1560, 13154), (3120, 6577)]