19020040

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{463}}^1$

素因数の和:566

約数の個数: 64

約数和(自身を含む): 46771200

約数和(自身を除く): 27751160

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 79, 104, 130, 158, 260, 316, 395, 463, 520, 632, 790, 926, 1027, 1580, 1852, 2054, 2315, 3160, 3704, 4108, 4630, 5135, 6019, 8216, 9260, 10270, 12038, 18520, 20540, 24076, 30095, 36577, 41080, 48152, 60190, 73154, 120380, 146308, 182885, 240760, 292616, 365770, 475501, 731540, 951002, 1463080, 1902004, 2377505, 3804008, 4755010, 9510020, 19020040]

約数ペア:

[(1, 19020040), (2, 9510020), (4, 4755010), (5, 3804008), (8, 2377505), (10, 1902004), (13, 1463080), (20, 951002), (26, 731540), (40, 475501), (52, 365770), (65, 292616), (79, 240760), (104, 182885), (130, 146308), (158, 120380), (260, 73154), (316, 60190), (395, 48152), (463, 41080), (520, 36577), (632, 30095), (790, 24076), (926, 20540), (1027, 18520), (1580, 12038), (1852, 10270), (2054, 9260), (2315, 8216), (3160, 6019), (3704, 5135), (4108, 4630)]