15721920

素因数分解:

$2^6\times 3^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{103}}^1$

素因数の和:179

約数の個数: 168

約数和(自身を含む): 55632096

約数和(自身を除く): 39910176

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 53, 60, 64, 72, 80, 90, 96, 103, 106, 120, 144, 159, 160, 180, 192, 206, 212, 240, 265, 288, 309, 318, 320, 360, 412, 424, 477, 480, 515, 530, 576, 618, 636, 720, 795, 824, 848, 927, 954, 960, 1030, 1060, 1236, 1272, 1440, 1545, 1590, 1648, 1696, 1854, 1908, 2060, 2120, 2385, 2472, 2544, 2880, 3090, 3180, 3296, 3392, 3708, 3816, 4120, 4240, 4635, 4770, 4944, 5088, 5459, 6180, 6360, 6592, 7416, 7632, 8240, 8480, 9270, 9540, 9888, 10176, 10918, 12360, 12720, 14832, 15264, 16377, 16480, 16960, 18540, 19080, 19776, 21836, 24720, 25440, 27295, 29664, 30528, 32754, 32960, 37080, 38160, 43672, 49131, 49440, 50880, 54590, 59328, 65508, 74160, 76320, 81885, 87344, 98262, 98880, 109180, 131016, 148320, 152640, 163770, 174688, 196524, 218360, 245655, 262032, 296640, 327540, 349376, 393048, 436720, 491310, 524064, 655080, 786096, 873440, 982620, 1048128, 1310160, 1572192, 1746880, 1965240, 2620320, 3144384, 3930480, 5240640, 7860960, 15721920]

約数ペア:

[(1, 15721920), (2, 7860960), (3, 5240640), (4, 3930480), (5, 3144384), (6, 2620320), (8, 1965240), (9, 1746880), (10, 1572192), (12, 1310160), (15, 1048128), (16, 982620), (18, 873440), (20, 786096), (24, 655080), (30, 524064), (32, 491310), (36, 436720), (40, 393048), (45, 349376), (48, 327540), (53, 296640), (60, 262032), (64, 245655), (72, 218360), (80, 196524), (90, 174688), (96, 163770), (103, 152640), (106, 148320), (120, 131016), (144, 109180), (159, 98880), (160, 98262), (180, 87344), (192, 81885), (206, 76320), (212, 74160), (240, 65508), (265, 59328), (288, 54590), (309, 50880), (318, 49440), (320, 49131), (360, 43672), (412, 38160), (424, 37080), (477, 32960), (480, 32754), (515, 30528), (530, 29664), (576, 27295), (618, 25440), (636, 24720), (720, 21836), (795, 19776), (824, 19080), (848, 18540), (927, 16960), (954, 16480), (960, 16377), (1030, 15264), (1060, 14832), (1236, 12720), (1272, 12360), (1440, 10918), (1545, 10176), (1590, 9888), (1648, 9540), (1696, 9270), (1854, 8480), (1908, 8240), (2060, 7632), (2120, 7416), (2385, 6592), (2472, 6360), (2544, 6180), (2880, 5459), (3090, 5088), (3180, 4944), (3296, 4770), (3392, 4635), (3708, 4240), (3816, 4120)]