861161840

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{71}}^1\times {\mathrm{179}}^1$

素因数の和:292

約数の個数: 240

約数和(自身を含む): 2564835840

約数和(自身を除く): 1703674000

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 20, 22, 28, 35, 40, 44, 55, 56, 70, 71, 77, 80, 88, 110, 112, 121, 140, 142, 154, 176, 179, 220, 242, 280, 284, 308, 355, 358, 385, 440, 484, 497, 560, 568, 605, 616, 710, 716, 770, 781, 847, 880, 895, 968, 994, 1136, 1210, 1232, 1253, 1420, 1432, 1540, 1562, 1694, 1790, 1936, 1969, 1988, 2420, 2485, 2506, 2840, 2864, 3080, 3124, 3388, 3580, 3905, 3938, 3976, 4235, 4840, 4970, 5012, 5467, 5680, 6160, 6248, 6265, 6776, 7160, 7810, 7876, 7952, 8470, 8591, 9680, 9845, 9940, 10024, 10934, 12496, 12530, 12709, 13552, 13783, 14320, 15620, 15752, 16940, 17182, 19690, 19880, 20048, 21659, 21868, 25060, 25418, 27335, 27566, 31240, 31504, 33880, 34364, 39380, 39760, 42955, 43318, 43736, 50120, 50836, 54670, 55132, 60137, 62480, 63545, 67760, 68728, 68915, 78760, 85910, 86636, 87472, 88963, 100240, 101672, 108295, 109340, 110264, 120274, 127090, 137456, 137830, 139799, 151613, 157520, 171820, 173272, 177926, 203344, 216590, 218680, 220528, 240548, 254180, 275660, 279598, 300685, 303226, 343640, 346544, 355852, 433180, 437360, 444815, 481096, 508360, 551320, 559196, 601370, 606452, 687280, 698995, 711704, 758065, 866360, 889630, 962192, 978593, 1016720, 1102640, 1118392, 1202740, 1212904, 1397990, 1423408, 1516130, 1537789, 1732720, 1779260, 1957186, 2236784, 2405480, 2425808, 2795980, 3032260, 3075578, 3558520, 3914372, 4810960, 4892965, 5591960, 6064520, 6151156, 7117040, 7688945, 7828744, 9785930, 10764523, 11183920, 12129040, 12302312, 15377890, 15657488, 19571860, 21529046, 24604624, 30755780, 39143720, 43058092, 53822615, 61511560, 78287440, 86116184, 107645230, 123023120, 172232368, 215290460, 430580920, 861161840]

約数ペア:

[(1, 861161840), (2, 430580920), (4, 215290460), (5, 172232368), (7, 123023120), (8, 107645230), (10, 86116184), (11, 78287440), (14, 61511560), (16, 53822615), (20, 43058092), (22, 39143720), (28, 30755780), (35, 24604624), (40, 21529046), (44, 19571860), (55, 15657488), (56, 15377890), (70, 12302312), (71, 12129040), (77, 11183920), (80, 10764523), (88, 9785930), (110, 7828744), (112, 7688945), (121, 7117040), (140, 6151156), (142, 6064520), (154, 5591960), (176, 4892965), (179, 4810960), (220, 3914372), (242, 3558520), (280, 3075578), (284, 3032260), (308, 2795980), (355, 2425808), (358, 2405480), (385, 2236784), (440, 1957186), (484, 1779260), (497, 1732720), (560, 1537789), (568, 1516130), (605, 1423408), (616, 1397990), (710, 1212904), (716, 1202740), (770, 1118392), (781, 1102640), (847, 1016720), (880, 978593), (895, 962192), (968, 889630), (994, 866360), (1136, 758065), (1210, 711704), (1232, 698995), (1253, 687280), (1420, 606452), (1432, 601370), (1540, 559196), (1562, 551320), (1694, 508360), (1790, 481096), (1936, 444815), (1969, 437360), (1988, 433180), (2420, 355852), (2485, 346544), (2506, 343640), (2840, 303226), (2864, 300685), (3080, 279598), (3124, 275660), (3388, 254180), (3580, 240548), (3905, 220528), (3938, 218680), (3976, 216590), (4235, 203344), (4840, 177926), (4970, 173272), (5012, 171820), (5467, 157520), (5680, 151613), (6160, 139799), (6248, 137830), (6265, 137456), (6776, 127090), (7160, 120274), (7810, 110264), (7876, 109340), (7952, 108295), (8470, 101672), (8591, 100240), (9680, 88963), (9845, 87472), (9940, 86636), (10024, 85910), (10934, 78760), (12496, 68915), (12530, 68728), (12709, 67760), (13552, 63545), (13783, 62480), (14320, 60137), (15620, 55132), (15752, 54670), (16940, 50836), (17182, 50120), (19690, 43736), (19880, 43318), (20048, 42955), (21659, 39760), (21868, 39380), (25060, 34364), (25418, 33880), (27335, 31504), (27566, 31240)]