289885736

素因数分解:

$2^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{272449}}^1$

素因数の和:272481

約数の個数: 32

約数和(自身を含む): 653880000

約数和(自身を除く): 363994264

約数列:

[1, 2, 4, 7, 8, 14, 19, 28, 38, 56, 76, 133, 152, 266, 532, 1064, 272449, 544898, 1089796, 1907143, 2179592, 3814286, 5176531, 7628572, 10353062, 15257144, 20706124, 36235717, 41412248, 72471434, 144942868, 289885736]

約数ペア:

[(1, 289885736), (2, 144942868), (4, 72471434), (7, 41412248), (8, 36235717), (14, 20706124), (19, 15257144), (28, 10353062), (38, 7628572), (56, 5176531), (76, 3814286), (133, 2179592), (152, 1907143), (266, 1089796), (532, 544898), (1064, 272449)]