19897140

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19507}}^1$

素因数の和:19536

約数の個数: 48

約数和(自身を含む): 58992192

約数和(自身を除く): 39095052

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 17, 20, 30, 34, 51, 60, 68, 85, 102, 170, 204, 255, 340, 510, 1020, 19507, 39014, 58521, 78028, 97535, 117042, 195070, 234084, 292605, 331619, 390140, 585210, 663238, 994857, 1170420, 1326476, 1658095, 1989714, 3316190, 3979428, 4974285, 6632380, 9948570, 19897140]

約数ペア:

[(1, 19897140), (2, 9948570), (3, 6632380), (4, 4974285), (5, 3979428), (6, 3316190), (10, 1989714), (12, 1658095), (15, 1326476), (17, 1170420), (20, 994857), (30, 663238), (34, 585210), (51, 390140), (60, 331619), (68, 292605), (85, 234084), (102, 195070), (170, 117042), (204, 97535), (255, 78028), (340, 58521), (510, 39014), (1020, 19507)]