331000672

素因数分解:

$2^5\times {\mathrm{19}}^1\times {\mathrm{499}}^1\times {\mathrm{1091}}^1$

素因数の和:1619

約数の個数: 48

約数和(自身を含む): 687960000

約数和(自身を除く): 356959328

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 76, 152, 304, 499, 608, 998, 1091, 1996, 2182, 3992, 4364, 7984, 8728, 9481, 15968, 17456, 18962, 20729, 34912, 37924, 41458, 75848, 82916, 151696, 165832, 303392, 331664, 544409, 663328, 1088818, 2177636, 4355272, 8710544, 10343771, 17421088, 20687542, 41375084, 82750168, 165500336, 331000672]

約数ペア:

[(1, 331000672), (2, 165500336), (4, 82750168), (8, 41375084), (16, 20687542), (19, 17421088), (32, 10343771), (38, 8710544), (76, 4355272), (152, 2177636), (304, 1088818), (499, 663328), (608, 544409), (998, 331664), (1091, 303392), (1996, 165832), (2182, 151696), (3992, 82916), (4364, 75848), (7984, 41458), (8728, 37924), (9481, 34912), (15968, 20729), (17456, 18962)]