257758240

素因数分解:

$2^5\times 5^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{787}}^1$

素因数の和:914

約数の個数: 96

約数和(自身を含む): 643386240

約数和(自身を除く): 385628000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 32, 40, 46, 80, 89, 92, 115, 160, 178, 184, 230, 356, 368, 445, 460, 712, 736, 787, 890, 920, 1424, 1574, 1780, 1840, 2047, 2848, 3148, 3560, 3680, 3935, 4094, 6296, 7120, 7870, 8188, 10235, 12592, 14240, 15740, 16376, 18101, 20470, 25184, 31480, 32752, 36202, 40940, 62960, 65504, 70043, 72404, 81880, 90505, 125920, 140086, 144808, 163760, 181010, 280172, 289616, 327520, 350215, 362020, 560344, 579232, 700430, 724040, 1120688, 1400860, 1448080, 1610989, 2241376, 2801720, 2896160, 3221978, 5603440, 6443956, 8054945, 11206880, 12887912, 16109890, 25775824, 32219780, 51551648, 64439560, 128879120, 257758240]

約数ペア:

[(1, 257758240), (2, 128879120), (4, 64439560), (5, 51551648), (8, 32219780), (10, 25775824), (16, 16109890), (20, 12887912), (23, 11206880), (32, 8054945), (40, 6443956), (46, 5603440), (80, 3221978), (89, 2896160), (92, 2801720), (115, 2241376), (160, 1610989), (178, 1448080), (184, 1400860), (230, 1120688), (356, 724040), (368, 700430), (445, 579232), (460, 560344), (712, 362020), (736, 350215), (787, 327520), (890, 289616), (920, 280172), (1424, 181010), (1574, 163760), (1780, 144808), (1840, 140086), (2047, 125920), (2848, 90505), (3148, 81880), (3560, 72404), (3680, 70043), (3935, 65504), (4094, 62960), (6296, 40940), (7120, 36202), (7870, 32752), (8188, 31480), (10235, 25184), (12592, 20470), (14240, 18101), (15740, 16376)]