278178880

素因数分解:

$2^6\times 5^1\times 7^2\times {\mathrm{113}}^1\times {\mathrm{157}}^1$

素因数の和:301

約数の個数: 168

約数和(自身を含む): 782333208

約数和(自身を除く): 504154328

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 64, 70, 80, 98, 112, 113, 140, 157, 160, 196, 224, 226, 245, 280, 314, 320, 392, 448, 452, 490, 560, 565, 628, 784, 785, 791, 904, 980, 1099, 1120, 1130, 1256, 1568, 1570, 1582, 1808, 1960, 2198, 2240, 2260, 2512, 3136, 3140, 3164, 3616, 3920, 3955, 4396, 4520, 5024, 5495, 5537, 6280, 6328, 7232, 7693, 7840, 7910, 8792, 9040, 10048, 10990, 11074, 12560, 12656, 15386, 15680, 15820, 17584, 17741, 18080, 21980, 22148, 25120, 25312, 27685, 30772, 31640, 35168, 35482, 36160, 38465, 43960, 44296, 50240, 50624, 55370, 61544, 63280, 70336, 70964, 76930, 87920, 88592, 88705, 110740, 123088, 124187, 126560, 141928, 153860, 175840, 177184, 177410, 221480, 246176, 248374, 253120, 283856, 307720, 351680, 354368, 354820, 442960, 492352, 496748, 567712, 615440, 620935, 709640, 869309, 885920, 993496, 1135424, 1230880, 1241870, 1419280, 1738618, 1771840, 1986992, 2461760, 2483740, 2838560, 3477236, 3973984, 4346545, 4967480, 5677120, 6954472, 7947968, 8693090, 9934960, 13908944, 17386180, 19869920, 27817888, 34772360, 39739840, 55635776, 69544720, 139089440, 278178880]

約数ペア:

[(1, 278178880), (2, 139089440), (4, 69544720), (5, 55635776), (7, 39739840), (8, 34772360), (10, 27817888), (14, 19869920), (16, 17386180), (20, 13908944), (28, 9934960), (32, 8693090), (35, 7947968), (40, 6954472), (49, 5677120), (56, 4967480), (64, 4346545), (70, 3973984), (80, 3477236), (98, 2838560), (112, 2483740), (113, 2461760), (140, 1986992), (157, 1771840), (160, 1738618), (196, 1419280), (224, 1241870), (226, 1230880), (245, 1135424), (280, 993496), (314, 885920), (320, 869309), (392, 709640), (448, 620935), (452, 615440), (490, 567712), (560, 496748), (565, 492352), (628, 442960), (784, 354820), (785, 354368), (791, 351680), (904, 307720), (980, 283856), (1099, 253120), (1120, 248374), (1130, 246176), (1256, 221480), (1568, 177410), (1570, 177184), (1582, 175840), (1808, 153860), (1960, 141928), (2198, 126560), (2240, 124187), (2260, 123088), (2512, 110740), (3136, 88705), (3140, 88592), (3164, 87920), (3616, 76930), (3920, 70964), (3955, 70336), (4396, 63280), (4520, 61544), (5024, 55370), (5495, 50624), (5537, 50240), (6280, 44296), (6328, 43960), (7232, 38465), (7693, 36160), (7840, 35482), (7910, 35168), (8792, 31640), (9040, 30772), (10048, 27685), (10990, 25312), (11074, 25120), (12560, 22148), (12656, 21980), (15386, 18080), (15680, 17741), (15820, 17584)]