20405400

素因数分解:

$2^3\times 3^1\times 5^2\times {\mathrm{71}}^1\times {\mathrm{479}}^1$

素因数の和:569

約数の個数: 96

約数和(自身を含む): 64281600

約数和(自身を除く): 43876200

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 25, 30, 40, 50, 60, 71, 75, 100, 120, 142, 150, 200, 213, 284, 300, 355, 426, 479, 568, 600, 710, 852, 958, 1065, 1420, 1437, 1704, 1775, 1916, 2130, 2395, 2840, 2874, 3550, 3832, 4260, 4790, 5325, 5748, 7100, 7185, 8520, 9580, 10650, 11496, 11975, 14200, 14370, 19160, 21300, 23950, 28740, 34009, 35925, 42600, 47900, 57480, 68018, 71850, 95800, 102027, 136036, 143700, 170045, 204054, 272072, 287400, 340090, 408108, 510135, 680180, 816216, 850225, 1020270, 1360360, 1700450, 2040540, 2550675, 3400900, 4081080, 5101350, 6801800, 10202700, 20405400]

約数ペア:

[(1, 20405400), (2, 10202700), (3, 6801800), (4, 5101350), (5, 4081080), (6, 3400900), (8, 2550675), (10, 2040540), (12, 1700450), (15, 1360360), (20, 1020270), (24, 850225), (25, 816216), (30, 680180), (40, 510135), (50, 408108), (60, 340090), (71, 287400), (75, 272072), (100, 204054), (120, 170045), (142, 143700), (150, 136036), (200, 102027), (213, 95800), (284, 71850), (300, 68018), (355, 57480), (426, 47900), (479, 42600), (568, 35925), (600, 34009), (710, 28740), (852, 23950), (958, 21300), (1065, 19160), (1420, 14370), (1437, 14200), (1704, 11975), (1775, 11496), (1916, 10650), (2130, 9580), (2395, 8520), (2840, 7185), (2874, 7100), (3550, 5748), (3832, 5325), (4260, 4790)]