78981840

素因数分解:

$2^4\times 3^2\times 5^1\times 7^1\times {\mathrm{15671}}^1$

素因数の和:15697

約数の個数: 120

約数和(自身を含む): 303159168

約数和(自身を除く): 224177328

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 35, 36, 40, 42, 45, 48, 56, 60, 63, 70, 72, 80, 84, 90, 105, 112, 120, 126, 140, 144, 168, 180, 210, 240, 252, 280, 315, 336, 360, 420, 504, 560, 630, 720, 840, 1008, 1260, 1680, 2520, 5040, 15671, 31342, 47013, 62684, 78355, 94026, 109697, 125368, 141039, 156710, 188052, 219394, 235065, 250736, 282078, 313420, 329091, 376104, 438788, 470130, 548485, 564156, 626840, 658182, 705195, 752208, 877576, 940260, 987273, 1096970, 1128312, 1253680, 1316364, 1410390, 1645455, 1755152, 1880520, 1974546, 2193940, 2256624, 2632728, 2820780, 3290910, 3761040, 3949092, 4387880, 4936365, 5265456, 5641560, 6581820, 7898184, 8775760, 9872730, 11283120, 13163640, 15796368, 19745460, 26327280, 39490920, 78981840]

約数ペア:

[(1, 78981840), (2, 39490920), (3, 26327280), (4, 19745460), (5, 15796368), (6, 13163640), (7, 11283120), (8, 9872730), (9, 8775760), (10, 7898184), (12, 6581820), (14, 5641560), (15, 5265456), (16, 4936365), (18, 4387880), (20, 3949092), (21, 3761040), (24, 3290910), (28, 2820780), (30, 2632728), (35, 2256624), (36, 2193940), (40, 1974546), (42, 1880520), (45, 1755152), (48, 1645455), (56, 1410390), (60, 1316364), (63, 1253680), (70, 1128312), (72, 1096970), (80, 987273), (84, 940260), (90, 877576), (105, 752208), (112, 705195), (120, 658182), (126, 626840), (140, 564156), (144, 548485), (168, 470130), (180, 438788), (210, 376104), (240, 329091), (252, 313420), (280, 282078), (315, 250736), (336, 235065), (360, 219394), (420, 188052), (504, 156710), (560, 141039), (630, 125368), (720, 109697), (840, 94026), (1008, 78355), (1260, 62684), (1680, 47013), (2520, 31342), (5040, 15671)]