389794804

素因数分解:

$2^2\times 7^3\times {\mathrm{19}}^2\times {\mathrm{787}}^1$

素因数の和:850

約数の個数: 72

約数和(自身を含む): 840638400

約数和(自身を除く): 450843596

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 49, 76, 98, 133, 196, 266, 343, 361, 532, 686, 722, 787, 931, 1372, 1444, 1574, 1862, 2527, 3148, 3724, 5054, 5509, 6517, 10108, 11018, 13034, 14953, 17689, 22036, 26068, 29906, 35378, 38563, 59812, 70756, 77126, 104671, 123823, 154252, 209342, 247646, 269941, 284107, 418684, 495292, 539882, 568214, 732697, 1079764, 1136428, 1465394, 1988749, 2930788, 3977498, 5128879, 7954996, 10257758, 13921243, 20515516, 27842486, 55684972, 97448701, 194897402, 389794804]

約数ペア:

[(1, 389794804), (2, 194897402), (4, 97448701), (7, 55684972), (14, 27842486), (19, 20515516), (28, 13921243), (38, 10257758), (49, 7954996), (76, 5128879), (98, 3977498), (133, 2930788), (196, 1988749), (266, 1465394), (343, 1136428), (361, 1079764), (532, 732697), (686, 568214), (722, 539882), (787, 495292), (931, 418684), (1372, 284107), (1444, 269941), (1574, 247646), (1862, 209342), (2527, 154252), (3148, 123823), (3724, 104671), (5054, 77126), (5509, 70756), (6517, 59812), (10108, 38563), (11018, 35378), (13034, 29906), (14953, 26068), (17689, 22036)]