20000084

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{653}}^1$

素因数の和:720

約数の個数: 48

約数和(自身を含む): 41018880

約数和(自身を除く): 21018796

約数列:

[1, 2, 4, 13, 19, 26, 31, 38, 52, 62, 76, 124, 247, 403, 494, 589, 653, 806, 988, 1178, 1306, 1612, 2356, 2612, 7657, 8489, 12407, 15314, 16978, 20243, 24814, 30628, 33956, 40486, 49628, 80972, 161291, 263159, 322582, 384617, 526318, 645164, 769234, 1052636, 1538468, 5000021, 10000042, 20000084]

約数ペア:

[(1, 20000084), (2, 10000042), (4, 5000021), (13, 1538468), (19, 1052636), (26, 769234), (31, 645164), (38, 526318), (52, 384617), (62, 322582), (76, 263159), (124, 161291), (247, 80972), (403, 49628), (494, 40486), (589, 33956), (653, 30628), (806, 24814), (988, 20243), (1178, 16978), (1306, 15314), (1612, 12407), (2356, 8489), (2612, 7657)]