18287920

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{17}}^2\times {\mathrm{113}}^1$

素因数の和:167

約数の個数: 120

約数和(自身を含む): 52077024

約数和(自身を除く): 33789104

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 17, 20, 28, 34, 35, 40, 56, 68, 70, 80, 85, 112, 113, 119, 136, 140, 170, 226, 238, 272, 280, 289, 340, 452, 476, 560, 565, 578, 595, 680, 791, 904, 952, 1130, 1156, 1190, 1360, 1445, 1582, 1808, 1904, 1921, 2023, 2260, 2312, 2380, 2890, 3164, 3842, 3955, 4046, 4520, 4624, 4760, 5780, 6328, 7684, 7910, 8092, 9040, 9520, 9605, 10115, 11560, 12656, 13447, 15368, 15820, 16184, 19210, 20230, 23120, 26894, 30736, 31640, 32368, 32657, 38420, 40460, 53788, 63280, 65314, 67235, 76840, 80920, 107576, 130628, 134470, 153680, 161840, 163285, 215152, 228599, 261256, 268940, 326570, 457198, 522512, 537880, 653140, 914396, 1075760, 1142995, 1306280, 1828792, 2285990, 2612560, 3657584, 4571980, 9143960, 18287920]

約数ペア:

[(1, 18287920), (2, 9143960), (4, 4571980), (5, 3657584), (7, 2612560), (8, 2285990), (10, 1828792), (14, 1306280), (16, 1142995), (17, 1075760), (20, 914396), (28, 653140), (34, 537880), (35, 522512), (40, 457198), (56, 326570), (68, 268940), (70, 261256), (80, 228599), (85, 215152), (112, 163285), (113, 161840), (119, 153680), (136, 134470), (140, 130628), (170, 107576), (226, 80920), (238, 76840), (272, 67235), (280, 65314), (289, 63280), (340, 53788), (452, 40460), (476, 38420), (560, 32657), (565, 32368), (578, 31640), (595, 30736), (680, 26894), (791, 23120), (904, 20230), (952, 19210), (1130, 16184), (1156, 15820), (1190, 15368), (1360, 13447), (1445, 12656), (1582, 11560), (1808, 10115), (1904, 9605), (1921, 9520), (2023, 9040), (2260, 8092), (2312, 7910), (2380, 7684), (2890, 6328), (3164, 5780), (3842, 4760), (3955, 4624), (4046, 4520)]