20507040

素因数分解:

$2^5\times 3^3\times 5^1\times {\mathrm{47}}^1\times {\mathrm{101}}^1$

素因数の和:172

約数の個数: 192

約数和(自身を含む): 74027520

約数和(自身を除く): 53520480

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 32, 36, 40, 45, 47, 48, 54, 60, 72, 80, 90, 94, 96, 101, 108, 120, 135, 141, 144, 160, 180, 188, 202, 216, 235, 240, 270, 282, 288, 303, 360, 376, 404, 423, 432, 470, 480, 505, 540, 564, 606, 705, 720, 752, 808, 846, 864, 909, 940, 1010, 1080, 1128, 1212, 1269, 1410, 1440, 1504, 1515, 1616, 1692, 1818, 1880, 2020, 2115, 2160, 2256, 2424, 2538, 2727, 2820, 3030, 3232, 3384, 3636, 3760, 4040, 4230, 4320, 4512, 4545, 4747, 4848, 5076, 5454, 5640, 6060, 6345, 6768, 7272, 7520, 8080, 8460, 9090, 9494, 9696, 10152, 10908, 11280, 12120, 12690, 13536, 13635, 14241, 14544, 16160, 16920, 18180, 18988, 20304, 21816, 22560, 23735, 24240, 25380, 27270, 28482, 29088, 33840, 36360, 37976, 40608, 42723, 43632, 47470, 48480, 50760, 54540, 56964, 67680, 71205, 72720, 75952, 85446, 87264, 94940, 101520, 109080, 113928, 128169, 142410, 145440, 151904, 170892, 189880, 203040, 213615, 218160, 227856, 256338, 284820, 341784, 379760, 427230, 436320, 455712, 512676, 569640, 640845, 683568, 759520, 854460, 1025352, 1139280, 1281690, 1367136, 1708920, 2050704, 2278560, 2563380, 3417840, 4101408, 5126760, 6835680, 10253520, 20507040]

約数ペア:

[(1, 20507040), (2, 10253520), (3, 6835680), (4, 5126760), (5, 4101408), (6, 3417840), (8, 2563380), (9, 2278560), (10, 2050704), (12, 1708920), (15, 1367136), (16, 1281690), (18, 1139280), (20, 1025352), (24, 854460), (27, 759520), (30, 683568), (32, 640845), (36, 569640), (40, 512676), (45, 455712), (47, 436320), (48, 427230), (54, 379760), (60, 341784), (72, 284820), (80, 256338), (90, 227856), (94, 218160), (96, 213615), (101, 203040), (108, 189880), (120, 170892), (135, 151904), (141, 145440), (144, 142410), (160, 128169), (180, 113928), (188, 109080), (202, 101520), (216, 94940), (235, 87264), (240, 85446), (270, 75952), (282, 72720), (288, 71205), (303, 67680), (360, 56964), (376, 54540), (404, 50760), (423, 48480), (432, 47470), (470, 43632), (480, 42723), (505, 40608), (540, 37976), (564, 36360), (606, 33840), (705, 29088), (720, 28482), (752, 27270), (808, 25380), (846, 24240), (864, 23735), (909, 22560), (940, 21816), (1010, 20304), (1080, 18988), (1128, 18180), (1212, 16920), (1269, 16160), (1410, 14544), (1440, 14241), (1504, 13635), (1515, 13536), (1616, 12690), (1692, 12120), (1818, 11280), (1880, 10908), (2020, 10152), (2115, 9696), (2160, 9494), (2256, 9090), (2424, 8460), (2538, 8080), (2727, 7520), (2820, 7272), (3030, 6768), (3232, 6345), (3384, 6060), (3636, 5640), (3760, 5454), (4040, 5076), (4230, 4848), (4320, 4747), (4512, 4545)]