218319920

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{29989}}^1$

素因数の和:30022

約数の個数: 80

約数和(自身を含む): 624751680

約数和(自身を除く): 406431760

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 35, 40, 52, 56, 65, 70, 80, 91, 104, 112, 130, 140, 182, 208, 260, 280, 364, 455, 520, 560, 728, 910, 1040, 1456, 1820, 3640, 7280, 29989, 59978, 119956, 149945, 209923, 239912, 299890, 389857, 419846, 479824, 599780, 779714, 839692, 1049615, 1199560, 1559428, 1679384, 1949285, 2099230, 2399120, 2728999, 3118856, 3358768, 3898570, 4198460, 5457998, 6237712, 7797140, 8396920, 10915996, 13644995, 15594280, 16793840, 21831992, 27289990, 31188560, 43663984, 54579980, 109159960, 218319920]

約数ペア:

[(1, 218319920), (2, 109159960), (4, 54579980), (5, 43663984), (7, 31188560), (8, 27289990), (10, 21831992), (13, 16793840), (14, 15594280), (16, 13644995), (20, 10915996), (26, 8396920), (28, 7797140), (35, 6237712), (40, 5457998), (52, 4198460), (56, 3898570), (65, 3358768), (70, 3118856), (80, 2728999), (91, 2399120), (104, 2099230), (112, 1949285), (130, 1679384), (140, 1559428), (182, 1199560), (208, 1049615), (260, 839692), (280, 779714), (364, 599780), (455, 479824), (520, 419846), (560, 389857), (728, 299890), (910, 239912), (1040, 209923), (1456, 149945), (1820, 119956), (3640, 59978), (7280, 29989)]