399903040

素因数分解:

$2^6\times 5^1\times {\mathrm{29}}^1\times {\mathrm{43093}}^1$

素因数の和:43139

約数の個数: 56

約数和(自身を含む): 985128840

約数和(自身を除く): 585225800

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 32, 40, 58, 64, 80, 116, 145, 160, 232, 290, 320, 464, 580, 928, 1160, 1856, 2320, 4640, 9280, 43093, 86186, 172372, 215465, 344744, 430930, 689488, 861860, 1249697, 1378976, 1723720, 2499394, 2757952, 3447440, 4998788, 6248485, 6894880, 9997576, 12496970, 13789760, 19995152, 24993940, 39990304, 49987880, 79980608, 99975760, 199951520, 399903040]

約数ペア:

[(1, 399903040), (2, 199951520), (4, 99975760), (5, 79980608), (8, 49987880), (10, 39990304), (16, 24993940), (20, 19995152), (29, 13789760), (32, 12496970), (40, 9997576), (58, 6894880), (64, 6248485), (80, 4998788), (116, 3447440), (145, 2757952), (160, 2499394), (232, 1723720), (290, 1378976), (320, 1249697), (464, 861860), (580, 689488), (928, 430930), (1160, 344744), (1856, 215465), (2320, 172372), (4640, 86186), (9280, 43093)]