19810128

素因数分解:

$2^4\times 3^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{599}}^1$

素因数の和:676

約数の個数: 80

約数和(自身を含む): 56246400

約数和(自身を除く): 36436272

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 24, 26, 39, 48, 52, 53, 78, 104, 106, 156, 159, 208, 212, 312, 318, 424, 599, 624, 636, 689, 848, 1198, 1272, 1378, 1797, 2067, 2396, 2544, 2756, 3594, 4134, 4792, 5512, 7188, 7787, 8268, 9584, 11024, 14376, 15574, 16536, 23361, 28752, 31148, 31747, 33072, 46722, 62296, 63494, 93444, 95241, 124592, 126988, 186888, 190482, 253976, 373776, 380964, 412711, 507952, 761928, 825422, 1238133, 1523856, 1650844, 2476266, 3301688, 4952532, 6603376, 9905064, 19810128]

約数ペア:

[(1, 19810128), (2, 9905064), (3, 6603376), (4, 4952532), (6, 3301688), (8, 2476266), (12, 1650844), (13, 1523856), (16, 1238133), (24, 825422), (26, 761928), (39, 507952), (48, 412711), (52, 380964), (53, 373776), (78, 253976), (104, 190482), (106, 186888), (156, 126988), (159, 124592), (208, 95241), (212, 93444), (312, 63494), (318, 62296), (424, 46722), (599, 33072), (624, 31747), (636, 31148), (689, 28752), (848, 23361), (1198, 16536), (1272, 15574), (1378, 14376), (1797, 11024), (2067, 9584), (2396, 8268), (2544, 7787), (2756, 7188), (3594, 5512), (4134, 4792)]