78882640

素因数分解:

$2^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{997}}^1$

素因数の和:1076

約数の個数: 80

約数和(自身を含む): 196023168

約数和(自身を除く): 117140528

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 40, 43, 46, 80, 86, 92, 115, 172, 184, 215, 230, 344, 368, 430, 460, 688, 860, 920, 989, 997, 1720, 1840, 1978, 1994, 3440, 3956, 3988, 4945, 4985, 7912, 7976, 9890, 9970, 15824, 15952, 19780, 19940, 22931, 39560, 39880, 42871, 45862, 79120, 79760, 85742, 91724, 114655, 171484, 183448, 214355, 229310, 342968, 366896, 428710, 458620, 685936, 857420, 917240, 986033, 1714840, 1834480, 1972066, 3429680, 3944132, 4930165, 7888264, 9860330, 15776528, 19720660, 39441320, 78882640]

約数ペア:

[(1, 78882640), (2, 39441320), (4, 19720660), (5, 15776528), (8, 9860330), (10, 7888264), (16, 4930165), (20, 3944132), (23, 3429680), (40, 1972066), (43, 1834480), (46, 1714840), (80, 986033), (86, 917240), (92, 857420), (115, 685936), (172, 458620), (184, 428710), (215, 366896), (230, 342968), (344, 229310), (368, 214355), (430, 183448), (460, 171484), (688, 114655), (860, 91724), (920, 85742), (989, 79760), (997, 79120), (1720, 45862), (1840, 42871), (1978, 39880), (1994, 39560), (3440, 22931), (3956, 19940), (3988, 19780), (4945, 15952), (4985, 15824), (7912, 9970), (7976, 9890)]