142339840

素因数分解:

$2^8\times 5^1\times {\mathrm{61}}^1\times {\mathrm{1823}}^1$

素因数の和:1905

約数の個数: 72

約数和(自身を含む): 346727808

約数和(自身を除く): 204387968

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 61, 64, 80, 122, 128, 160, 244, 256, 305, 320, 488, 610, 640, 976, 1220, 1280, 1823, 1952, 2440, 3646, 3904, 4880, 7292, 7808, 9115, 9760, 14584, 15616, 18230, 19520, 29168, 36460, 39040, 58336, 72920, 78080, 111203, 116672, 145840, 222406, 233344, 291680, 444812, 466688, 556015, 583360, 889624, 1112030, 1166720, 1779248, 2224060, 2333440, 3558496, 4448120, 7116992, 8896240, 14233984, 17792480, 28467968, 35584960, 71169920, 142339840]

約数ペア:

[(1, 142339840), (2, 71169920), (4, 35584960), (5, 28467968), (8, 17792480), (10, 14233984), (16, 8896240), (20, 7116992), (32, 4448120), (40, 3558496), (61, 2333440), (64, 2224060), (80, 1779248), (122, 1166720), (128, 1112030), (160, 889624), (244, 583360), (256, 556015), (305, 466688), (320, 444812), (488, 291680), (610, 233344), (640, 222406), (976, 145840), (1220, 116672), (1280, 111203), (1823, 78080), (1952, 72920), (2440, 58336), (3646, 39040), (3904, 36460), (4880, 29168), (7292, 19520), (7808, 18230), (9115, 15616), (9760, 14584)]