278146260

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{7121}}^1$

素因数の和:7174

約数の個数: 144

約数和(自身を含む): 995484672

約数和(自身を除く): 717338412

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 31, 35, 36, 42, 45, 60, 62, 63, 70, 84, 90, 93, 105, 124, 126, 140, 155, 180, 186, 210, 217, 252, 279, 310, 315, 372, 420, 434, 465, 558, 620, 630, 651, 868, 930, 1085, 1116, 1260, 1302, 1395, 1860, 1953, 2170, 2604, 2790, 3255, 3906, 4340, 5580, 6510, 7121, 7812, 9765, 13020, 14242, 19530, 21363, 28484, 35605, 39060, 42726, 49847, 64089, 71210, 85452, 99694, 106815, 128178, 142420, 149541, 199388, 213630, 220751, 249235, 256356, 299082, 320445, 427260, 441502, 448623, 498470, 598164, 640890, 662253, 747705, 883004, 897246, 996940, 1103755, 1281780, 1324506, 1495410, 1545257, 1794492, 1986759, 2207510, 2243115, 2649012, 2990820, 3090514, 3311265, 3973518, 4415020, 4486230, 4635771, 6181028, 6622530, 7726285, 7947036, 8972460, 9271542, 9933795, 13245060, 13907313, 15452570, 18543084, 19867590, 23178855, 27814626, 30905140, 39735180, 46357710, 55629252, 69536565, 92715420, 139073130, 278146260]

約数ペア:

[(1, 278146260), (2, 139073130), (3, 92715420), (4, 69536565), (5, 55629252), (6, 46357710), (7, 39735180), (9, 30905140), (10, 27814626), (12, 23178855), (14, 19867590), (15, 18543084), (18, 15452570), (20, 13907313), (21, 13245060), (28, 9933795), (30, 9271542), (31, 8972460), (35, 7947036), (36, 7726285), (42, 6622530), (45, 6181028), (60, 4635771), (62, 4486230), (63, 4415020), (70, 3973518), (84, 3311265), (90, 3090514), (93, 2990820), (105, 2649012), (124, 2243115), (126, 2207510), (140, 1986759), (155, 1794492), (180, 1545257), (186, 1495410), (210, 1324506), (217, 1281780), (252, 1103755), (279, 996940), (310, 897246), (315, 883004), (372, 747705), (420, 662253), (434, 640890), (465, 598164), (558, 498470), (620, 448623), (630, 441502), (651, 427260), (868, 320445), (930, 299082), (1085, 256356), (1116, 249235), (1260, 220751), (1302, 213630), (1395, 199388), (1860, 149541), (1953, 142420), (2170, 128178), (2604, 106815), (2790, 99694), (3255, 85452), (3906, 71210), (4340, 64089), (5580, 49847), (6510, 42726), (7121, 39060), (7812, 35605), (9765, 28484), (13020, 21363), (14242, 19530)]