19768440

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{257}}^1\times {\mathrm{641}}^1$

素因数の和:912

約数の個数: 64

約数和(自身を含む): 59628960

約数和(自身を除く): 39860520

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 257, 514, 641, 771, 1028, 1282, 1285, 1542, 1923, 2056, 2564, 2570, 3084, 3205, 3846, 3855, 5128, 5140, 6168, 6410, 7692, 7710, 9615, 10280, 12820, 15384, 15420, 19230, 25640, 30840, 38460, 76920, 164737, 329474, 494211, 658948, 823685, 988422, 1317896, 1647370, 1976844, 2471055, 3294740, 3953688, 4942110, 6589480, 9884220, 19768440]

約数ペア:

[(1, 19768440), (2, 9884220), (3, 6589480), (4, 4942110), (5, 3953688), (6, 3294740), (8, 2471055), (10, 1976844), (12, 1647370), (15, 1317896), (20, 988422), (24, 823685), (30, 658948), (40, 494211), (60, 329474), (120, 164737), (257, 76920), (514, 38460), (641, 30840), (771, 25640), (1028, 19230), (1282, 15420), (1285, 15384), (1542, 12820), (1923, 10280), (2056, 9615), (2564, 7710), (2570, 7692), (3084, 6410), (3205, 6168), (3846, 5140), (3855, 5128)]