1787700720

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{421}}^1\times {\mathrm{1361}}^1$

素因数の和:1811

約数の個数: 160

約数和(自身を含む): 5986741824

約数和(自身を除く): 4199041104

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 39, 40, 48, 52, 60, 65, 78, 80, 104, 120, 130, 156, 195, 208, 240, 260, 312, 390, 421, 520, 624, 780, 842, 1040, 1263, 1361, 1560, 1684, 2105, 2526, 2722, 3120, 3368, 4083, 4210, 5052, 5444, 5473, 6315, 6736, 6805, 8166, 8420, 10104, 10888, 10946, 12630, 13610, 16332, 16419, 16840, 17693, 20208, 20415, 21776, 21892, 25260, 27220, 27365, 32664, 32838, 33680, 35386, 40830, 43784, 50520, 53079, 54440, 54730, 65328, 65676, 70772, 81660, 82095, 87568, 88465, 101040, 106158, 108880, 109460, 131352, 141544, 163320, 164190, 176930, 212316, 218920, 262704, 265395, 283088, 326640, 328380, 353860, 424632, 437840, 530790, 572981, 656760, 707720, 849264, 1061580, 1145962, 1313520, 1415440, 1718943, 2123160, 2291924, 2864905, 3437886, 4246320, 4583848, 5729810, 6875772, 7448753, 8594715, 9167696, 11459620, 13751544, 14897506, 17189430, 22346259, 22919240, 27503088, 29795012, 34378860, 37243765, 44692518, 45838480, 59590024, 68757720, 74487530, 89385036, 111731295, 119180048, 137515440, 148975060, 178770072, 223462590, 297950120, 357540144, 446925180, 595900240, 893850360, 1787700720]

約数ペア:

[(1, 1787700720), (2, 893850360), (3, 595900240), (4, 446925180), (5, 357540144), (6, 297950120), (8, 223462590), (10, 178770072), (12, 148975060), (13, 137515440), (15, 119180048), (16, 111731295), (20, 89385036), (24, 74487530), (26, 68757720), (30, 59590024), (39, 45838480), (40, 44692518), (48, 37243765), (52, 34378860), (60, 29795012), (65, 27503088), (78, 22919240), (80, 22346259), (104, 17189430), (120, 14897506), (130, 13751544), (156, 11459620), (195, 9167696), (208, 8594715), (240, 7448753), (260, 6875772), (312, 5729810), (390, 4583848), (421, 4246320), (520, 3437886), (624, 2864905), (780, 2291924), (842, 2123160), (1040, 1718943), (1263, 1415440), (1361, 1313520), (1560, 1145962), (1684, 1061580), (2105, 849264), (2526, 707720), (2722, 656760), (3120, 572981), (3368, 530790), (4083, 437840), (4210, 424632), (5052, 353860), (5444, 328380), (5473, 326640), (6315, 283088), (6736, 265395), (6805, 262704), (8166, 218920), (8420, 212316), (10104, 176930), (10888, 164190), (10946, 163320), (12630, 141544), (13610, 131352), (16332, 109460), (16419, 108880), (16840, 106158), (17693, 101040), (20208, 88465), (20415, 87568), (21776, 82095), (21892, 81660), (25260, 70772), (27220, 65676), (27365, 65328), (32664, 54730), (32838, 54440), (33680, 53079), (35386, 50520), (40830, 43784)]