19537140

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{181}}^1\times {\mathrm{257}}^1$

素因数の和:457

約数の個数: 96

約数和(自身を含む): 63108864

約数和(自身を除く): 43571724

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 181, 210, 257, 362, 420, 514, 543, 724, 771, 905, 1028, 1086, 1267, 1285, 1542, 1799, 1810, 2172, 2534, 2570, 2715, 3084, 3598, 3620, 3801, 3855, 5068, 5140, 5397, 5430, 6335, 7196, 7602, 7710, 8995, 10794, 10860, 12670, 15204, 15420, 17990, 19005, 21588, 25340, 26985, 35980, 38010, 46517, 53970, 76020, 93034, 107940, 139551, 186068, 232585, 279102, 325619, 465170, 558204, 651238, 697755, 930340, 976857, 1302476, 1395510, 1628095, 1953714, 2791020, 3256190, 3907428, 4884285, 6512380, 9768570, 19537140]

約数ペア:

[(1, 19537140), (2, 9768570), (3, 6512380), (4, 4884285), (5, 3907428), (6, 3256190), (7, 2791020), (10, 1953714), (12, 1628095), (14, 1395510), (15, 1302476), (20, 976857), (21, 930340), (28, 697755), (30, 651238), (35, 558204), (42, 465170), (60, 325619), (70, 279102), (84, 232585), (105, 186068), (140, 139551), (181, 107940), (210, 93034), (257, 76020), (362, 53970), (420, 46517), (514, 38010), (543, 35980), (724, 26985), (771, 25340), (905, 21588), (1028, 19005), (1086, 17990), (1267, 15420), (1285, 15204), (1542, 12670), (1799, 10860), (1810, 10794), (2172, 8995), (2534, 7710), (2570, 7602), (2715, 7196), (3084, 6335), (3598, 5430), (3620, 5397), (3801, 5140), (3855, 5068)]