161389760

素因数分解:

$2^6\times 5^1\times 7^1\times {\mathrm{109}}^1\times {\mathrm{661}}^1$

素因数の和:794

約数の個数: 112

約数和(自身を含む): 443910720

約数和(自身を除く): 282520960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 109, 112, 140, 160, 218, 224, 280, 320, 436, 448, 545, 560, 661, 763, 872, 1090, 1120, 1322, 1526, 1744, 2180, 2240, 2644, 3052, 3305, 3488, 3815, 4360, 4627, 5288, 6104, 6610, 6976, 7630, 8720, 9254, 10576, 12208, 13220, 15260, 17440, 18508, 21152, 23135, 24416, 26440, 30520, 34880, 37016, 42304, 46270, 48832, 52880, 61040, 72049, 74032, 92540, 105760, 122080, 144098, 148064, 185080, 211520, 244160, 288196, 296128, 360245, 370160, 504343, 576392, 720490, 740320, 1008686, 1152784, 1440980, 1480640, 2017372, 2305568, 2521715, 2881960, 4034744, 4611136, 5043430, 5763920, 8069488, 10086860, 11527840, 16138976, 20173720, 23055680, 32277952, 40347440, 80694880, 161389760]

約数ペア:

[(1, 161389760), (2, 80694880), (4, 40347440), (5, 32277952), (7, 23055680), (8, 20173720), (10, 16138976), (14, 11527840), (16, 10086860), (20, 8069488), (28, 5763920), (32, 5043430), (35, 4611136), (40, 4034744), (56, 2881960), (64, 2521715), (70, 2305568), (80, 2017372), (109, 1480640), (112, 1440980), (140, 1152784), (160, 1008686), (218, 740320), (224, 720490), (280, 576392), (320, 504343), (436, 370160), (448, 360245), (545, 296128), (560, 288196), (661, 244160), (763, 211520), (872, 185080), (1090, 148064), (1120, 144098), (1322, 122080), (1526, 105760), (1744, 92540), (2180, 74032), (2240, 72049), (2644, 61040), (3052, 52880), (3305, 48832), (3488, 46270), (3815, 42304), (4360, 37016), (4627, 34880), (5288, 30520), (6104, 26440), (6610, 24416), (6976, 23135), (7630, 21152), (8720, 18508), (9254, 17440), (10576, 15260), (12208, 13220)]