1998123904

素因数分解:

$2^7\times 7^1\times {\mathrm{19}}^1\times {\mathrm{117371}}^1$

素因数の和:117411

約数の個数: 64

約数和(自身を含む): 4788777600

約数和(自身を除く): 2790653696

約数列:

[1, 2, 4, 7, 8, 14, 16, 19, 28, 32, 38, 56, 64, 76, 112, 128, 133, 152, 224, 266, 304, 448, 532, 608, 896, 1064, 1216, 2128, 2432, 4256, 8512, 17024, 117371, 234742, 469484, 821597, 938968, 1643194, 1877936, 2230049, 3286388, 3755872, 4460098, 6572776, 7511744, 8920196, 13145552, 15023488, 15610343, 17840392, 26291104, 31220686, 35680784, 52582208, 62441372, 71361568, 105164416, 124882744, 142723136, 249765488, 285446272, 499530976, 999061952, 1998123904]

約数ペア:

[(1, 1998123904), (2, 999061952), (4, 499530976), (7, 285446272), (8, 249765488), (14, 142723136), (16, 124882744), (19, 105164416), (28, 71361568), (32, 62441372), (38, 52582208), (56, 35680784), (64, 31220686), (76, 26291104), (112, 17840392), (128, 15610343), (133, 15023488), (152, 13145552), (224, 8920196), (266, 7511744), (304, 6572776), (448, 4460098), (532, 3755872), (608, 3286388), (896, 2230049), (1064, 1877936), (1216, 1643194), (2128, 938968), (2432, 821597), (4256, 469484), (8512, 234742), (17024, 117371)]