17971520

素因数分解:

$2^6\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{113}}^1$

素因数の和:208

約数の個数: 112

約数和(自身を含む): 50035968

約数和(自身を除く): 32064448

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 71, 80, 112, 113, 140, 142, 160, 224, 226, 280, 284, 320, 355, 448, 452, 497, 560, 565, 568, 710, 791, 904, 994, 1120, 1130, 1136, 1420, 1582, 1808, 1988, 2240, 2260, 2272, 2485, 2840, 3164, 3616, 3955, 3976, 4520, 4544, 4970, 5680, 6328, 7232, 7910, 7952, 8023, 9040, 9940, 11360, 12656, 15820, 15904, 16046, 18080, 19880, 22720, 25312, 31640, 31808, 32092, 36160, 39760, 40115, 50624, 56161, 63280, 64184, 79520, 80230, 112322, 126560, 128368, 159040, 160460, 224644, 253120, 256736, 280805, 320920, 449288, 513472, 561610, 641840, 898576, 1123220, 1283680, 1797152, 2246440, 2567360, 3594304, 4492880, 8985760, 17971520]

約数ペア:

[(1, 17971520), (2, 8985760), (4, 4492880), (5, 3594304), (7, 2567360), (8, 2246440), (10, 1797152), (14, 1283680), (16, 1123220), (20, 898576), (28, 641840), (32, 561610), (35, 513472), (40, 449288), (56, 320920), (64, 280805), (70, 256736), (71, 253120), (80, 224644), (112, 160460), (113, 159040), (140, 128368), (142, 126560), (160, 112322), (224, 80230), (226, 79520), (280, 64184), (284, 63280), (320, 56161), (355, 50624), (448, 40115), (452, 39760), (497, 36160), (560, 32092), (565, 31808), (568, 31640), (710, 25312), (791, 22720), (904, 19880), (994, 18080), (1120, 16046), (1130, 15904), (1136, 15820), (1420, 12656), (1582, 11360), (1808, 9940), (1988, 9040), (2240, 8023), (2260, 7952), (2272, 7910), (2485, 7232), (2840, 6328), (3164, 5680), (3616, 4970), (3955, 4544), (3976, 4520)]