279936747

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{61}}^1\times {\mathrm{571}}^1$

素因数の和:704

約数の個数: 48

約数和(自身を含む): 442590720

約数和(自身を除く): 162653973

約数列:

[1, 3, 9, 19, 47, 57, 61, 141, 171, 183, 423, 549, 571, 893, 1159, 1713, 2679, 2867, 3477, 5139, 8037, 8601, 10431, 10849, 25803, 26837, 32547, 34831, 54473, 80511, 97641, 104493, 163419, 241533, 313479, 490257, 509903, 661789, 1529709, 1637057, 1985367, 4589127, 4911171, 5956101, 14733513, 31104083, 93312249, 279936747]

約数ペア:

[(1, 279936747), (3, 93312249), (9, 31104083), (19, 14733513), (47, 5956101), (57, 4911171), (61, 4589127), (141, 1985367), (171, 1637057), (183, 1529709), (423, 661789), (549, 509903), (571, 490257), (893, 313479), (1159, 241533), (1713, 163419), (2679, 104493), (2867, 97641), (3477, 80511), (5139, 54473), (8037, 34831), (8601, 32547), (10431, 26837), (10849, 25803)]