20337840

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{601}}^1$

素因数の和:667

約数の個数: 120

約数和(自身を含む): 69870528

約数和(自身を除く): 49532688

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 47, 48, 60, 72, 80, 90, 94, 120, 141, 144, 180, 188, 235, 240, 282, 360, 376, 423, 470, 564, 601, 705, 720, 752, 846, 940, 1128, 1202, 1410, 1692, 1803, 1880, 2115, 2256, 2404, 2820, 3005, 3384, 3606, 3760, 4230, 4808, 5409, 5640, 6010, 6768, 7212, 8460, 9015, 9616, 10818, 11280, 12020, 14424, 16920, 18030, 21636, 24040, 27045, 28247, 28848, 33840, 36060, 43272, 48080, 54090, 56494, 72120, 84741, 86544, 108180, 112988, 141235, 144240, 169482, 216360, 225976, 254223, 282470, 338964, 423705, 432720, 451952, 508446, 564940, 677928, 847410, 1016892, 1129880, 1271115, 1355856, 1694820, 2033784, 2259760, 2542230, 3389640, 4067568, 5084460, 6779280, 10168920, 20337840]

約数ペア:

[(1, 20337840), (2, 10168920), (3, 6779280), (4, 5084460), (5, 4067568), (6, 3389640), (8, 2542230), (9, 2259760), (10, 2033784), (12, 1694820), (15, 1355856), (16, 1271115), (18, 1129880), (20, 1016892), (24, 847410), (30, 677928), (36, 564940), (40, 508446), (45, 451952), (47, 432720), (48, 423705), (60, 338964), (72, 282470), (80, 254223), (90, 225976), (94, 216360), (120, 169482), (141, 144240), (144, 141235), (180, 112988), (188, 108180), (235, 86544), (240, 84741), (282, 72120), (360, 56494), (376, 54090), (423, 48080), (470, 43272), (564, 36060), (601, 33840), (705, 28848), (720, 28247), (752, 27045), (846, 24040), (940, 21636), (1128, 18030), (1202, 16920), (1410, 14424), (1692, 12020), (1803, 11280), (1880, 10818), (2115, 9616), (2256, 9015), (2404, 8460), (2820, 7212), (3005, 6768), (3384, 6010), (3606, 5640), (3760, 5409), (4230, 4808)]