123368840

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{233}}^1$

素因数の和:343

約数の個数: 128

約数和(自身を含む): 334264320

約数和(自身を除く): 210895480

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 31, 35, 40, 56, 61, 62, 70, 122, 124, 140, 155, 217, 233, 244, 248, 280, 305, 310, 427, 434, 466, 488, 610, 620, 854, 868, 932, 1085, 1165, 1220, 1240, 1631, 1708, 1736, 1864, 1891, 2135, 2170, 2330, 2440, 3262, 3416, 3782, 4270, 4340, 4660, 6524, 7223, 7564, 8155, 8540, 8680, 9320, 9455, 13048, 13237, 14213, 14446, 15128, 16310, 17080, 18910, 26474, 28426, 28892, 32620, 36115, 37820, 50561, 52948, 56852, 57784, 65240, 66185, 71065, 72230, 75640, 99491, 101122, 105896, 113704, 132370, 142130, 144460, 198982, 202244, 252805, 264740, 284260, 288920, 397964, 404488, 440603, 497455, 505610, 529480, 568520, 795928, 881206, 994910, 1011220, 1762412, 1989820, 2022440, 2203015, 3084221, 3524824, 3979640, 4406030, 6168442, 8812060, 12336884, 15421105, 17624120, 24673768, 30842210, 61684420, 123368840]

約数ペア:

[(1, 123368840), (2, 61684420), (4, 30842210), (5, 24673768), (7, 17624120), (8, 15421105), (10, 12336884), (14, 8812060), (20, 6168442), (28, 4406030), (31, 3979640), (35, 3524824), (40, 3084221), (56, 2203015), (61, 2022440), (62, 1989820), (70, 1762412), (122, 1011220), (124, 994910), (140, 881206), (155, 795928), (217, 568520), (233, 529480), (244, 505610), (248, 497455), (280, 440603), (305, 404488), (310, 397964), (427, 288920), (434, 284260), (466, 264740), (488, 252805), (610, 202244), (620, 198982), (854, 144460), (868, 142130), (932, 132370), (1085, 113704), (1165, 105896), (1220, 101122), (1240, 99491), (1631, 75640), (1708, 72230), (1736, 71065), (1864, 66185), (1891, 65240), (2135, 57784), (2170, 56852), (2330, 52948), (2440, 50561), (3262, 37820), (3416, 36115), (3782, 32620), (4270, 28892), (4340, 28426), (4660, 26474), (6524, 18910), (7223, 17080), (7564, 16310), (8155, 15128), (8540, 14446), (8680, 14213), (9320, 13237), (9455, 13048)]