68218290

素因数分解:

$2^1\times 3^2\times 5^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{499}}^1$

素因数の和:557

約数の個数: 144

約数和(自身を含む): 213408000

約数和(自身を除く): 145189710

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 30, 31, 35, 42, 45, 49, 62, 63, 70, 90, 93, 98, 105, 126, 147, 155, 186, 210, 217, 245, 279, 294, 310, 315, 434, 441, 465, 490, 499, 558, 630, 651, 735, 882, 930, 998, 1085, 1302, 1395, 1470, 1497, 1519, 1953, 2170, 2205, 2495, 2790, 2994, 3038, 3255, 3493, 3906, 4410, 4491, 4557, 4990, 6510, 6986, 7485, 7595, 8982, 9114, 9765, 10479, 13671, 14970, 15190, 15469, 17465, 19530, 20958, 22455, 22785, 24451, 27342, 30938, 31437, 34930, 44910, 45570, 46407, 48902, 52395, 62874, 68355, 73353, 77345, 92814, 104790, 108283, 122255, 136710, 139221, 146706, 154690, 157185, 216566, 220059, 232035, 244510, 278442, 314370, 324849, 366765, 440118, 464070, 541415, 649698, 696105, 733530, 757981, 974547, 1082830, 1100295, 1392210, 1515962, 1624245, 1949094, 2200590, 2273943, 3248490, 3789905, 4547886, 4872735, 6821829, 7579810, 9745470, 11369715, 13643658, 22739430, 34109145, 68218290]

約数ペア:

[(1, 68218290), (2, 34109145), (3, 22739430), (5, 13643658), (6, 11369715), (7, 9745470), (9, 7579810), (10, 6821829), (14, 4872735), (15, 4547886), (18, 3789905), (21, 3248490), (30, 2273943), (31, 2200590), (35, 1949094), (42, 1624245), (45, 1515962), (49, 1392210), (62, 1100295), (63, 1082830), (70, 974547), (90, 757981), (93, 733530), (98, 696105), (105, 649698), (126, 541415), (147, 464070), (155, 440118), (186, 366765), (210, 324849), (217, 314370), (245, 278442), (279, 244510), (294, 232035), (310, 220059), (315, 216566), (434, 157185), (441, 154690), (465, 146706), (490, 139221), (499, 136710), (558, 122255), (630, 108283), (651, 104790), (735, 92814), (882, 77345), (930, 73353), (998, 68355), (1085, 62874), (1302, 52395), (1395, 48902), (1470, 46407), (1497, 45570), (1519, 44910), (1953, 34930), (2170, 31437), (2205, 30938), (2495, 27342), (2790, 24451), (2994, 22785), (3038, 22455), (3255, 20958), (3493, 19530), (3906, 17465), (4410, 15469), (4491, 15190), (4557, 14970), (4990, 13671), (6510, 10479), (6986, 9765), (7485, 9114), (7595, 8982)]