164499725

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{79}}^1\times {\mathrm{149}}^1$

素因数の和:294

約数の個数: 48

約数和(自身を含む): 229152000

約数和(自身を除く): 64652275

約数列:

[1, 5, 13, 25, 43, 65, 79, 149, 215, 325, 395, 559, 745, 1027, 1075, 1937, 1975, 2795, 3397, 3725, 5135, 6407, 9685, 11771, 13975, 16985, 25675, 32035, 44161, 48425, 58855, 83291, 84925, 153023, 160175, 220805, 294275, 416455, 506153, 765115, 1104025, 2082275, 2530765, 3825575, 6579989, 12653825, 32899945, 164499725]

約数ペア:

[(1, 164499725), (5, 32899945), (13, 12653825), (25, 6579989), (43, 3825575), (65, 2530765), (79, 2082275), (149, 1104025), (215, 765115), (325, 506153), (395, 416455), (559, 294275), (745, 220805), (1027, 160175), (1075, 153023), (1937, 84925), (1975, 83291), (2795, 58855), (3397, 48425), (3725, 44161), (5135, 32035), (6407, 25675), (9685, 16985), (11771, 13975)]