20989891008

素因数分解:

$2^6\times 3^2\times {\mathrm{89}}^1\times {\mathrm{331}}^1\times {\mathrm{1237}}^1$

素因数の和:1675

約数の個数: 168

約数和(自身を含む): 61072867440

約数和(自身を除く): 40082976432

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 32, 36, 48, 64, 72, 89, 96, 144, 178, 192, 267, 288, 331, 356, 534, 576, 662, 712, 801, 993, 1068, 1237, 1324, 1424, 1602, 1986, 2136, 2474, 2648, 2848, 2979, 3204, 3711, 3972, 4272, 4948, 5296, 5696, 5958, 6408, 7422, 7944, 8544, 9896, 10592, 11133, 11916, 12816, 14844, 15888, 17088, 19792, 21184, 22266, 23832, 25632, 29459, 29688, 31776, 39584, 44532, 47664, 51264, 58918, 59376, 63552, 79168, 88377, 89064, 95328, 110093, 117836, 118752, 176754, 178128, 190656, 220186, 235672, 237504, 265131, 330279, 353508, 356256, 409447, 440372, 471344, 530262, 660558, 707016, 712512, 818894, 880744, 942688, 990837, 1060524, 1228341, 1321116, 1414032, 1637788, 1761488, 1885376, 1981674, 2121048, 2456682, 2642232, 2828064, 3275576, 3522976, 3685023, 3963348, 4242096, 4913364, 5284464, 5656128, 6551152, 7045952, 7370046, 7926696, 8484192, 9826728, 10568928, 13102304, 14740092, 15853392, 16968384, 19653456, 21137856, 26204608, 29480184, 31706784, 36440783, 39306912, 58960368, 63413568, 72881566, 78613824, 109322349, 117920736, 145763132, 218644698, 235841472, 291526264, 327967047, 437289396, 583052528, 655934094, 874578792, 1166105056, 1311868188, 1749157584, 2332210112, 2623736376, 3498315168, 5247472752, 6996630336, 10494945504, 20989891008]

約数ペア:

[(1, 20989891008), (2, 10494945504), (3, 6996630336), (4, 5247472752), (6, 3498315168), (8, 2623736376), (9, 2332210112), (12, 1749157584), (16, 1311868188), (18, 1166105056), (24, 874578792), (32, 655934094), (36, 583052528), (48, 437289396), (64, 327967047), (72, 291526264), (89, 235841472), (96, 218644698), (144, 145763132), (178, 117920736), (192, 109322349), (267, 78613824), (288, 72881566), (331, 63413568), (356, 58960368), (534, 39306912), (576, 36440783), (662, 31706784), (712, 29480184), (801, 26204608), (993, 21137856), (1068, 19653456), (1237, 16968384), (1324, 15853392), (1424, 14740092), (1602, 13102304), (1986, 10568928), (2136, 9826728), (2474, 8484192), (2648, 7926696), (2848, 7370046), (2979, 7045952), (3204, 6551152), (3711, 5656128), (3972, 5284464), (4272, 4913364), (4948, 4242096), (5296, 3963348), (5696, 3685023), (5958, 3522976), (6408, 3275576), (7422, 2828064), (7944, 2642232), (8544, 2456682), (9896, 2121048), (10592, 1981674), (11133, 1885376), (11916, 1761488), (12816, 1637788), (14844, 1414032), (15888, 1321116), (17088, 1228341), (19792, 1060524), (21184, 990837), (22266, 942688), (23832, 880744), (25632, 818894), (29459, 712512), (29688, 707016), (31776, 660558), (39584, 530262), (44532, 471344), (47664, 440372), (51264, 409447), (58918, 356256), (59376, 353508), (63552, 330279), (79168, 265131), (88377, 237504), (89064, 235672), (95328, 220186), (110093, 190656), (117836, 178128), (118752, 176754)]