81374454

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{19}}^2\times {\mathrm{1789}}^1$

素因数の和:1842

約数の個数: 72

約数和(自身を含む): 212780880

約数和(自身を除く): 131406426

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 19, 21, 38, 42, 57, 63, 114, 126, 133, 171, 266, 342, 361, 399, 722, 798, 1083, 1197, 1789, 2166, 2394, 2527, 3249, 3578, 5054, 5367, 6498, 7581, 10734, 12523, 15162, 16101, 22743, 25046, 32202, 33991, 37569, 45486, 67982, 75138, 101973, 112707, 203946, 225414, 237937, 305919, 475874, 611838, 645829, 713811, 1291658, 1427622, 1937487, 2141433, 3874974, 4282866, 4520803, 5812461, 9041606, 11624922, 13562409, 27124818, 40687227, 81374454]

約数ペア:

[(1, 81374454), (2, 40687227), (3, 27124818), (6, 13562409), (7, 11624922), (9, 9041606), (14, 5812461), (18, 4520803), (19, 4282866), (21, 3874974), (38, 2141433), (42, 1937487), (57, 1427622), (63, 1291658), (114, 713811), (126, 645829), (133, 611838), (171, 475874), (266, 305919), (342, 237937), (361, 225414), (399, 203946), (722, 112707), (798, 101973), (1083, 75138), (1197, 67982), (1789, 45486), (2166, 37569), (2394, 33991), (2527, 32202), (3249, 25046), (3578, 22743), (5054, 16101), (5367, 15162), (6498, 12523), (7581, 10734)]