19700040

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{181}}^1\times {\mathrm{907}}^1$

素因数の和:1102

約数の個数: 64

約数和(自身を含む): 59492160

約数和(自身を除く): 39792120

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 181, 362, 543, 724, 905, 907, 1086, 1448, 1810, 1814, 2172, 2715, 2721, 3620, 3628, 4344, 4535, 5430, 5442, 7240, 7256, 9070, 10860, 10884, 13605, 18140, 21720, 21768, 27210, 36280, 54420, 108840, 164167, 328334, 492501, 656668, 820835, 985002, 1313336, 1641670, 1970004, 2462505, 3283340, 3940008, 4925010, 6566680, 9850020, 19700040]

約数ペア:

[(1, 19700040), (2, 9850020), (3, 6566680), (4, 4925010), (5, 3940008), (6, 3283340), (8, 2462505), (10, 1970004), (12, 1641670), (15, 1313336), (20, 985002), (24, 820835), (30, 656668), (40, 492501), (60, 328334), (120, 164167), (181, 108840), (362, 54420), (543, 36280), (724, 27210), (905, 21768), (907, 21720), (1086, 18140), (1448, 13605), (1810, 10884), (1814, 10860), (2172, 9070), (2715, 7256), (2721, 7240), (3620, 5442), (3628, 5430), (4344, 4535)]