2789969080

素因数分解:

$2^3\times 5^1\times {\mathrm{139}}^1\times {\mathrm{337}}^1\times {\mathrm{1489}}^1$

素因数の和:1976

約数の個数: 64

約数和(自身を含む): 6345612000

約数和(自身を除く): 3555642920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 139, 278, 337, 556, 674, 695, 1112, 1348, 1390, 1489, 1685, 2696, 2780, 2978, 3370, 5560, 5956, 6740, 7445, 11912, 13480, 14890, 29780, 46843, 59560, 93686, 187372, 206971, 234215, 374744, 413942, 468430, 501793, 827884, 936860, 1003586, 1034855, 1655768, 1873720, 2007172, 2069710, 2508965, 4014344, 4139420, 5017930, 8278840, 10035860, 20071720, 69749227, 139498454, 278996908, 348746135, 557993816, 697492270, 1394984540, 2789969080]

約数ペア:

[(1, 2789969080), (2, 1394984540), (4, 697492270), (5, 557993816), (8, 348746135), (10, 278996908), (20, 139498454), (40, 69749227), (139, 20071720), (278, 10035860), (337, 8278840), (556, 5017930), (674, 4139420), (695, 4014344), (1112, 2508965), (1348, 2069710), (1390, 2007172), (1489, 1873720), (1685, 1655768), (2696, 1034855), (2780, 1003586), (2978, 936860), (3370, 827884), (5560, 501793), (5956, 468430), (6740, 413942), (7445, 374744), (11912, 234215), (13480, 206971), (14890, 187372), (29780, 93686), (46843, 59560)]