989262080

素因数分解:

$2^8\times 5^1\times {\mathrm{31}}^1\times {\mathrm{107}}^1\times {\mathrm{233}}^1$

素因数の和:392

約数の個数: 144

約数和(自身を含む): 2479486464

約数和(自身を除く): 1490224384

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 107, 124, 128, 155, 160, 214, 233, 248, 256, 310, 320, 428, 466, 496, 535, 620, 640, 856, 932, 992, 1070, 1165, 1240, 1280, 1712, 1864, 1984, 2140, 2330, 2480, 3317, 3424, 3728, 3968, 4280, 4660, 4960, 6634, 6848, 7223, 7456, 7936, 8560, 9320, 9920, 13268, 13696, 14446, 14912, 16585, 17120, 18640, 19840, 24931, 26536, 27392, 28892, 29824, 33170, 34240, 36115, 37280, 39680, 49862, 53072, 57784, 59648, 66340, 68480, 72230, 74560, 99724, 106144, 115568, 124655, 132680, 136960, 144460, 149120, 199448, 212288, 231136, 249310, 265360, 288920, 298240, 398896, 424576, 462272, 498620, 530720, 577840, 772861, 797792, 849152, 924544, 997240, 1061440, 1155680, 1545722, 1595584, 1849088, 1994480, 2122880, 2311360, 3091444, 3191168, 3864305, 3988960, 4245760, 4622720, 6182888, 6382336, 7728610, 7977920, 9245440, 12365776, 15457220, 15955840, 24731552, 30914440, 31911680, 49463104, 61828880, 98926208, 123657760, 197852416, 247315520, 494631040, 989262080]

約数ペア:

[(1, 989262080), (2, 494631040), (4, 247315520), (5, 197852416), (8, 123657760), (10, 98926208), (16, 61828880), (20, 49463104), (31, 31911680), (32, 30914440), (40, 24731552), (62, 15955840), (64, 15457220), (80, 12365776), (107, 9245440), (124, 7977920), (128, 7728610), (155, 6382336), (160, 6182888), (214, 4622720), (233, 4245760), (248, 3988960), (256, 3864305), (310, 3191168), (320, 3091444), (428, 2311360), (466, 2122880), (496, 1994480), (535, 1849088), (620, 1595584), (640, 1545722), (856, 1155680), (932, 1061440), (992, 997240), (1070, 924544), (1165, 849152), (1240, 797792), (1280, 772861), (1712, 577840), (1864, 530720), (1984, 498620), (2140, 462272), (2330, 424576), (2480, 398896), (3317, 298240), (3424, 288920), (3728, 265360), (3968, 249310), (4280, 231136), (4660, 212288), (4960, 199448), (6634, 149120), (6848, 144460), (7223, 136960), (7456, 132680), (7936, 124655), (8560, 115568), (9320, 106144), (9920, 99724), (13268, 74560), (13696, 72230), (14446, 68480), (14912, 66340), (16585, 59648), (17120, 57784), (18640, 53072), (19840, 49862), (24931, 39680), (26536, 37280), (27392, 36115), (28892, 34240), (29824, 33170)]