278345745

素因数分解:

$3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{3271}}^1$

素因数の和:3374

約数の個数: 48

約数和(自身を含む): 506348544

約数和(自身を除く): 228002799

約数列:

[1, 3, 5, 9, 15, 31, 45, 61, 93, 155, 183, 279, 305, 465, 549, 915, 1395, 1891, 2745, 3271, 5673, 9455, 9813, 16355, 17019, 28365, 29439, 49065, 85095, 101401, 147195, 199531, 304203, 507005, 598593, 912609, 997655, 1521015, 1795779, 2992965, 4563045, 6185461, 8978895, 18556383, 30927305, 55669149, 92781915, 278345745]

約数ペア:

[(1, 278345745), (3, 92781915), (5, 55669149), (9, 30927305), (15, 18556383), (31, 8978895), (45, 6185461), (61, 4563045), (93, 2992965), (155, 1795779), (183, 1521015), (279, 997655), (305, 912609), (465, 598593), (549, 507005), (915, 304203), (1395, 199531), (1891, 147195), (2745, 101401), (3271, 85095), (5673, 49065), (9455, 29439), (9813, 28365), (16355, 17019)]