20893816480

素因数分解:

$2^5\times 5^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{127}}^1\times {\mathrm{809}}^1$

素因数の和:1023

約数の個数: 192

約数和(自身を含む): 52672757760

約数和(自身を除く): 31778941280

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 41, 62, 80, 82, 124, 127, 155, 160, 164, 205, 248, 254, 310, 328, 410, 496, 508, 620, 635, 656, 809, 820, 992, 1016, 1240, 1270, 1271, 1312, 1618, 1640, 2032, 2480, 2540, 2542, 3236, 3280, 3937, 4045, 4064, 4960, 5080, 5084, 5207, 6355, 6472, 6560, 7874, 8090, 10160, 10168, 10414, 12710, 12944, 15748, 16180, 19685, 20320, 20336, 20828, 25079, 25420, 25888, 26035, 31496, 32360, 33169, 39370, 40672, 41656, 50158, 50840, 52070, 62992, 64720, 66338, 78740, 83312, 100316, 101680, 102743, 104140, 125395, 125984, 129440, 132676, 157480, 161417, 165845, 166624, 200632, 203360, 205486, 208280, 250790, 265352, 314960, 322834, 331690, 401264, 410972, 416560, 501580, 513715, 530704, 629920, 645668, 663380, 802528, 807085, 821944, 833120, 1003160, 1027430, 1028239, 1061408, 1291336, 1326760, 1614170, 1643888, 2006320, 2054860, 2056478, 2582672, 2653520, 3185033, 3228340, 3287776, 4012640, 4109720, 4112956, 4212463, 5141195, 5165344, 5307040, 6370066, 6456680, 8219440, 8225912, 8424926, 10282390, 12740132, 12913360, 15925165, 16438880, 16451824, 16849852, 20564780, 21062315, 25480264, 25826720, 31850330, 32903648, 33699704, 41129560, 42124630, 50960528, 63700660, 67399408, 82259120, 84249260, 101921056, 127401320, 130586353, 134798816, 164518240, 168498520, 254802640, 261172706, 336997040, 509605280, 522345412, 652931765, 673994080, 1044690824, 1305863530, 2089381648, 2611727060, 4178763296, 5223454120, 10446908240, 20893816480]

約数ペア:

[(1, 20893816480), (2, 10446908240), (4, 5223454120), (5, 4178763296), (8, 2611727060), (10, 2089381648), (16, 1305863530), (20, 1044690824), (31, 673994080), (32, 652931765), (40, 522345412), (41, 509605280), (62, 336997040), (80, 261172706), (82, 254802640), (124, 168498520), (127, 164518240), (155, 134798816), (160, 130586353), (164, 127401320), (205, 101921056), (248, 84249260), (254, 82259120), (310, 67399408), (328, 63700660), (410, 50960528), (496, 42124630), (508, 41129560), (620, 33699704), (635, 32903648), (656, 31850330), (809, 25826720), (820, 25480264), (992, 21062315), (1016, 20564780), (1240, 16849852), (1270, 16451824), (1271, 16438880), (1312, 15925165), (1618, 12913360), (1640, 12740132), (2032, 10282390), (2480, 8424926), (2540, 8225912), (2542, 8219440), (3236, 6456680), (3280, 6370066), (3937, 5307040), (4045, 5165344), (4064, 5141195), (4960, 4212463), (5080, 4112956), (5084, 4109720), (5207, 4012640), (6355, 3287776), (6472, 3228340), (6560, 3185033), (7874, 2653520), (8090, 2582672), (10160, 2056478), (10168, 2054860), (10414, 2006320), (12710, 1643888), (12944, 1614170), (15748, 1326760), (16180, 1291336), (19685, 1061408), (20320, 1028239), (20336, 1027430), (20828, 1003160), (25079, 833120), (25420, 821944), (25888, 807085), (26035, 802528), (31496, 663380), (32360, 645668), (33169, 629920), (39370, 530704), (40672, 513715), (41656, 501580), (50158, 416560), (50840, 410972), (52070, 401264), (62992, 331690), (64720, 322834), (66338, 314960), (78740, 265352), (83312, 250790), (100316, 208280), (101680, 205486), (102743, 203360), (104140, 200632), (125395, 166624), (125984, 165845), (129440, 161417), (132676, 157480)]