81428760

素因数分解:

$2^3\times 3^3\times 5^1\times 7^1\times {\mathrm{10771}}^1$

素因数の和:10798

約数の個数: 128

約数和(自身を含む): 310233600

約数和(自身を除く): 228804840

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 27, 28, 30, 35, 36, 40, 42, 45, 54, 56, 60, 63, 70, 72, 84, 90, 105, 108, 120, 126, 135, 140, 168, 180, 189, 210, 216, 252, 270, 280, 315, 360, 378, 420, 504, 540, 630, 756, 840, 945, 1080, 1260, 1512, 1890, 2520, 3780, 7560, 10771, 21542, 32313, 43084, 53855, 64626, 75397, 86168, 96939, 107710, 129252, 150794, 161565, 193878, 215420, 226191, 258504, 290817, 301588, 323130, 376985, 387756, 430840, 452382, 484695, 581634, 603176, 646260, 678573, 753970, 775512, 904764, 969390, 1130955, 1163268, 1292520, 1357146, 1454085, 1507940, 1809528, 1938780, 2035719, 2261910, 2326536, 2714292, 2908170, 3015880, 3392865, 3877560, 4071438, 4523820, 5428584, 5816340, 6785730, 8142876, 9047640, 10178595, 11632680, 13571460, 16285752, 20357190, 27142920, 40714380, 81428760]

約数ペア:

[(1, 81428760), (2, 40714380), (3, 27142920), (4, 20357190), (5, 16285752), (6, 13571460), (7, 11632680), (8, 10178595), (9, 9047640), (10, 8142876), (12, 6785730), (14, 5816340), (15, 5428584), (18, 4523820), (20, 4071438), (21, 3877560), (24, 3392865), (27, 3015880), (28, 2908170), (30, 2714292), (35, 2326536), (36, 2261910), (40, 2035719), (42, 1938780), (45, 1809528), (54, 1507940), (56, 1454085), (60, 1357146), (63, 1292520), (70, 1163268), (72, 1130955), (84, 969390), (90, 904764), (105, 775512), (108, 753970), (120, 678573), (126, 646260), (135, 603176), (140, 581634), (168, 484695), (180, 452382), (189, 430840), (210, 387756), (216, 376985), (252, 323130), (270, 301588), (280, 290817), (315, 258504), (360, 226191), (378, 215420), (420, 193878), (504, 161565), (540, 150794), (630, 129252), (756, 107710), (840, 96939), (945, 86168), (1080, 75397), (1260, 64626), (1512, 53855), (1890, 43084), (2520, 32313), (3780, 21542), (7560, 10771)]