81859680

素因数分解:

$2^5\times 3^3\times 5^1\times 7^1\times {\mathrm{2707}}^1$

素因数の和:2738

約数の個数: 192

約数和(自身を含む): 327559680

約数和(自身を除く): 245700000

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 27, 28, 30, 32, 35, 36, 40, 42, 45, 48, 54, 56, 60, 63, 70, 72, 80, 84, 90, 96, 105, 108, 112, 120, 126, 135, 140, 144, 160, 168, 180, 189, 210, 216, 224, 240, 252, 270, 280, 288, 315, 336, 360, 378, 420, 432, 480, 504, 540, 560, 630, 672, 720, 756, 840, 864, 945, 1008, 1080, 1120, 1260, 1440, 1512, 1680, 1890, 2016, 2160, 2520, 2707, 3024, 3360, 3780, 4320, 5040, 5414, 6048, 7560, 8121, 10080, 10828, 13535, 15120, 16242, 18949, 21656, 24363, 27070, 30240, 32484, 37898, 40605, 43312, 48726, 54140, 56847, 64968, 73089, 75796, 81210, 86624, 94745, 97452, 108280, 113694, 121815, 129936, 146178, 151592, 162420, 170541, 189490, 194904, 216560, 227388, 243630, 259872, 284235, 292356, 303184, 324840, 341082, 365445, 378980, 389808, 433120, 454776, 487260, 511623, 568470, 584712, 606368, 649680, 682164, 730890, 757960, 779616, 852705, 909552, 974520, 1023246, 1136940, 1169424, 1299360, 1364328, 1461780, 1515920, 1705410, 1819104, 1949040, 2046492, 2273880, 2338848, 2558115, 2728656, 2923560, 3031840, 3410820, 3898080, 4092984, 4547760, 5116230, 5457312, 5847120, 6821640, 8185968, 9095520, 10232460, 11694240, 13643280, 16371936, 20464920, 27286560, 40929840, 81859680]

約数ペア:

[(1, 81859680), (2, 40929840), (3, 27286560), (4, 20464920), (5, 16371936), (6, 13643280), (7, 11694240), (8, 10232460), (9, 9095520), (10, 8185968), (12, 6821640), (14, 5847120), (15, 5457312), (16, 5116230), (18, 4547760), (20, 4092984), (21, 3898080), (24, 3410820), (27, 3031840), (28, 2923560), (30, 2728656), (32, 2558115), (35, 2338848), (36, 2273880), (40, 2046492), (42, 1949040), (45, 1819104), (48, 1705410), (54, 1515920), (56, 1461780), (60, 1364328), (63, 1299360), (70, 1169424), (72, 1136940), (80, 1023246), (84, 974520), (90, 909552), (96, 852705), (105, 779616), (108, 757960), (112, 730890), (120, 682164), (126, 649680), (135, 606368), (140, 584712), (144, 568470), (160, 511623), (168, 487260), (180, 454776), (189, 433120), (210, 389808), (216, 378980), (224, 365445), (240, 341082), (252, 324840), (270, 303184), (280, 292356), (288, 284235), (315, 259872), (336, 243630), (360, 227388), (378, 216560), (420, 194904), (432, 189490), (480, 170541), (504, 162420), (540, 151592), (560, 146178), (630, 129936), (672, 121815), (720, 113694), (756, 108280), (840, 97452), (864, 94745), (945, 86624), (1008, 81210), (1080, 75796), (1120, 73089), (1260, 64968), (1440, 56847), (1512, 54140), (1680, 48726), (1890, 43312), (2016, 40605), (2160, 37898), (2520, 32484), (2707, 30240), (3024, 27070), (3360, 24363), (3780, 21656), (4320, 18949), (5040, 16242), (5414, 15120), (6048, 13535), (7560, 10828), (8121, 10080)]