891763840

素因数分解:

$2^7\times 5^1\times {\mathrm{11}}^1\times {\mathrm{197}}^1\times {\mathrm{643}}^1$

素因数の和:870

約数の個数: 128

約数和(自身を含む): 2341120320

約数和(自身を除く): 1449356480

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 64, 80, 88, 110, 128, 160, 176, 197, 220, 320, 352, 394, 440, 640, 643, 704, 788, 880, 985, 1286, 1408, 1576, 1760, 1970, 2167, 2572, 3152, 3215, 3520, 3940, 4334, 5144, 6304, 6430, 7040, 7073, 7880, 8668, 10288, 10835, 12608, 12860, 14146, 15760, 17336, 20576, 21670, 25216, 25720, 28292, 31520, 34672, 35365, 41152, 43340, 51440, 56584, 63040, 69344, 70730, 82304, 86680, 102880, 113168, 126080, 126671, 138688, 141460, 173360, 205760, 226336, 253342, 277376, 282920, 346720, 411520, 452672, 506684, 565840, 633355, 693440, 905344, 1013368, 1131680, 1266710, 1386880, 1393381, 2026736, 2263360, 2533420, 2786762, 4053472, 4526720, 5066840, 5573524, 6966905, 8106944, 10133680, 11147048, 13933810, 16213888, 20267360, 22294096, 27867620, 40534720, 44588192, 55735240, 81069440, 89176384, 111470480, 178352768, 222940960, 445881920, 891763840]

約数ペア:

[(1, 891763840), (2, 445881920), (4, 222940960), (5, 178352768), (8, 111470480), (10, 89176384), (11, 81069440), (16, 55735240), (20, 44588192), (22, 40534720), (32, 27867620), (40, 22294096), (44, 20267360), (55, 16213888), (64, 13933810), (80, 11147048), (88, 10133680), (110, 8106944), (128, 6966905), (160, 5573524), (176, 5066840), (197, 4526720), (220, 4053472), (320, 2786762), (352, 2533420), (394, 2263360), (440, 2026736), (640, 1393381), (643, 1386880), (704, 1266710), (788, 1131680), (880, 1013368), (985, 905344), (1286, 693440), (1408, 633355), (1576, 565840), (1760, 506684), (1970, 452672), (2167, 411520), (2572, 346720), (3152, 282920), (3215, 277376), (3520, 253342), (3940, 226336), (4334, 205760), (5144, 173360), (6304, 141460), (6430, 138688), (7040, 126671), (7073, 126080), (7880, 113168), (8668, 102880), (10288, 86680), (10835, 82304), (12608, 70730), (12860, 69344), (14146, 63040), (15760, 56584), (17336, 51440), (20576, 43340), (21670, 41152), (25216, 35365), (25720, 34672), (28292, 31520)]