20168379280

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{16363}}^1$

素因数の和:16485

約数の個数: 160

約数和(自身を含む): 56101552128

約数和(自身を除く): 35933172848

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 35, 40, 56, 62, 70, 71, 80, 112, 124, 140, 142, 155, 217, 248, 280, 284, 310, 355, 434, 496, 497, 560, 568, 620, 710, 868, 994, 1085, 1136, 1240, 1420, 1736, 1988, 2170, 2201, 2480, 2485, 2840, 3472, 3976, 4340, 4402, 4970, 5680, 7952, 8680, 8804, 9940, 11005, 15407, 16363, 17360, 17608, 19880, 22010, 30814, 32726, 35216, 39760, 44020, 61628, 65452, 77035, 81815, 88040, 114541, 123256, 130904, 154070, 163630, 176080, 229082, 246512, 261808, 308140, 327260, 458164, 507253, 572705, 616280, 654520, 916328, 1014506, 1145410, 1161773, 1232560, 1309040, 1832656, 2029012, 2290820, 2323546, 2536265, 3550771, 4058024, 4581640, 4647092, 5072530, 5808865, 7101542, 8116048, 8132411, 9163280, 9294184, 10145060, 11617730, 14203084, 16264822, 17753855, 18588368, 20290120, 23235460, 28406168, 32529644, 35507710, 36014963, 40580240, 40662055, 46470920, 56812336, 65059288, 71015420, 72029926, 81324110, 92941840, 130118576, 142030840, 144059852, 162648220, 180074815, 252104741, 284061680, 288119704, 325296440, 360149630, 504209482, 576239408, 650592880, 720299260, 1008418964, 1260523705, 1440598520, 2016837928, 2521047410, 2881197040, 4033675856, 5042094820, 10084189640, 20168379280]

約数ペア:

[(1, 20168379280), (2, 10084189640), (4, 5042094820), (5, 4033675856), (7, 2881197040), (8, 2521047410), (10, 2016837928), (14, 1440598520), (16, 1260523705), (20, 1008418964), (28, 720299260), (31, 650592880), (35, 576239408), (40, 504209482), (56, 360149630), (62, 325296440), (70, 288119704), (71, 284061680), (80, 252104741), (112, 180074815), (124, 162648220), (140, 144059852), (142, 142030840), (155, 130118576), (217, 92941840), (248, 81324110), (280, 72029926), (284, 71015420), (310, 65059288), (355, 56812336), (434, 46470920), (496, 40662055), (497, 40580240), (560, 36014963), (568, 35507710), (620, 32529644), (710, 28406168), (868, 23235460), (994, 20290120), (1085, 18588368), (1136, 17753855), (1240, 16264822), (1420, 14203084), (1736, 11617730), (1988, 10145060), (2170, 9294184), (2201, 9163280), (2480, 8132411), (2485, 8116048), (2840, 7101542), (3472, 5808865), (3976, 5072530), (4340, 4647092), (4402, 4581640), (4970, 4058024), (5680, 3550771), (7952, 2536265), (8680, 2323546), (8804, 2290820), (9940, 2029012), (11005, 1832656), (15407, 1309040), (16363, 1232560), (17360, 1161773), (17608, 1145410), (19880, 1014506), (22010, 916328), (30814, 654520), (32726, 616280), (35216, 572705), (39760, 507253), (44020, 458164), (61628, 327260), (65452, 308140), (77035, 261808), (81815, 246512), (88040, 229082), (114541, 176080), (123256, 163630), (130904, 154070)]