20179894912

素因数分解:

$2^7\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{83}}^1\times {\mathrm{863}}^1$

素因数の和:1062

約数の個数: 128

約数和(自身を含む): 42639851520

約数和(自身を除く): 22459956608

約数列:

[1, 2, 4, 8, 16, 31, 32, 62, 64, 71, 83, 124, 128, 142, 166, 248, 284, 332, 496, 568, 664, 863, 992, 1136, 1328, 1726, 1984, 2201, 2272, 2573, 2656, 3452, 3968, 4402, 4544, 5146, 5312, 5893, 6904, 8804, 9088, 10292, 10624, 11786, 13808, 17608, 20584, 23572, 26753, 27616, 35216, 41168, 47144, 53506, 55232, 61273, 70432, 71629, 82336, 94288, 107012, 110464, 122546, 140864, 143258, 164672, 182683, 188576, 214024, 245092, 281728, 286516, 329344, 365366, 377152, 428048, 490184, 573032, 730732, 754304, 856096, 980368, 1146064, 1461464, 1712192, 1899463, 1960736, 2220499, 2292128, 2922928, 3424384, 3798926, 3921472, 4440998, 4584256, 5085659, 5845856, 7597852, 7842944, 8881996, 9168512, 10171318, 11691712, 15195704, 17763992, 20342636, 23383424, 30391408, 35527984, 40685272, 60782816, 71055968, 81370544, 121565632, 142111936, 157655429, 162741088, 243131264, 284223872, 315310858, 325482176, 630621716, 650964352, 1261243432, 2522486864, 5044973728, 10089947456, 20179894912]

約数ペア:

[(1, 20179894912), (2, 10089947456), (4, 5044973728), (8, 2522486864), (16, 1261243432), (31, 650964352), (32, 630621716), (62, 325482176), (64, 315310858), (71, 284223872), (83, 243131264), (124, 162741088), (128, 157655429), (142, 142111936), (166, 121565632), (248, 81370544), (284, 71055968), (332, 60782816), (496, 40685272), (568, 35527984), (664, 30391408), (863, 23383424), (992, 20342636), (1136, 17763992), (1328, 15195704), (1726, 11691712), (1984, 10171318), (2201, 9168512), (2272, 8881996), (2573, 7842944), (2656, 7597852), (3452, 5845856), (3968, 5085659), (4402, 4584256), (4544, 4440998), (5146, 3921472), (5312, 3798926), (5893, 3424384), (6904, 2922928), (8804, 2292128), (9088, 2220499), (10292, 1960736), (10624, 1899463), (11786, 1712192), (13808, 1461464), (17608, 1146064), (20584, 980368), (23572, 856096), (26753, 754304), (27616, 730732), (35216, 573032), (41168, 490184), (47144, 428048), (53506, 377152), (55232, 365366), (61273, 329344), (70432, 286516), (71629, 281728), (82336, 245092), (94288, 214024), (107012, 188576), (110464, 182683), (122546, 164672), (140864, 143258)]