20354760

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{47}}^1\times {\mathrm{401}}^1$

素因数の和:468

約数の個数: 128

約数和(自身を含む): 69465600

約数和(自身を除く): 49110840

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 47, 54, 60, 72, 90, 94, 108, 120, 135, 141, 180, 188, 216, 235, 270, 282, 360, 376, 401, 423, 470, 540, 564, 705, 802, 846, 940, 1080, 1128, 1203, 1269, 1410, 1604, 1692, 1880, 2005, 2115, 2406, 2538, 2820, 3208, 3384, 3609, 4010, 4230, 4812, 5076, 5640, 6015, 6345, 7218, 8020, 8460, 9624, 10152, 10827, 12030, 12690, 14436, 16040, 16920, 18045, 18847, 21654, 24060, 25380, 28872, 36090, 37694, 43308, 48120, 50760, 54135, 56541, 72180, 75388, 86616, 94235, 108270, 113082, 144360, 150776, 169623, 188470, 216540, 226164, 282705, 339246, 376940, 433080, 452328, 508869, 565410, 678492, 753880, 848115, 1017738, 1130820, 1356984, 1696230, 2035476, 2261640, 2544345, 3392460, 4070952, 5088690, 6784920, 10177380, 20354760]

約数ペア:

[(1, 20354760), (2, 10177380), (3, 6784920), (4, 5088690), (5, 4070952), (6, 3392460), (8, 2544345), (9, 2261640), (10, 2035476), (12, 1696230), (15, 1356984), (18, 1130820), (20, 1017738), (24, 848115), (27, 753880), (30, 678492), (36, 565410), (40, 508869), (45, 452328), (47, 433080), (54, 376940), (60, 339246), (72, 282705), (90, 226164), (94, 216540), (108, 188470), (120, 169623), (135, 150776), (141, 144360), (180, 113082), (188, 108270), (216, 94235), (235, 86616), (270, 75388), (282, 72180), (360, 56541), (376, 54135), (401, 50760), (423, 48120), (470, 43308), (540, 37694), (564, 36090), (705, 28872), (802, 25380), (846, 24060), (940, 21654), (1080, 18847), (1128, 18045), (1203, 16920), (1269, 16040), (1410, 14436), (1604, 12690), (1692, 12030), (1880, 10827), (2005, 10152), (2115, 9624), (2406, 8460), (2538, 8020), (2820, 7218), (3208, 6345), (3384, 6015), (3609, 5640), (4010, 5076), (4230, 4812)]