18465840

素因数分解:

$2^4\times 3^3\times 5^1\times {\mathrm{83}}^1\times {\mathrm{103}}^1$

素因数の和:208

約数の個数: 160

約数和(自身を含む): 64995840

約数和(自身を除く): 46530000

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 36, 40, 45, 48, 54, 60, 72, 80, 83, 90, 103, 108, 120, 135, 144, 166, 180, 206, 216, 240, 249, 270, 309, 332, 360, 412, 415, 432, 498, 515, 540, 618, 664, 720, 747, 824, 830, 927, 996, 1030, 1080, 1236, 1245, 1328, 1494, 1545, 1648, 1660, 1854, 1992, 2060, 2160, 2241, 2472, 2490, 2781, 2988, 3090, 3320, 3708, 3735, 3984, 4120, 4482, 4635, 4944, 4980, 5562, 5976, 6180, 6640, 7416, 7470, 8240, 8549, 8964, 9270, 9960, 11124, 11205, 11952, 12360, 13905, 14832, 14940, 17098, 17928, 18540, 19920, 22248, 22410, 24720, 25647, 27810, 29880, 34196, 35856, 37080, 42745, 44496, 44820, 51294, 55620, 59760, 68392, 74160, 76941, 85490, 89640, 102588, 111240, 128235, 136784, 153882, 170980, 179280, 205176, 222480, 230823, 256470, 307764, 341960, 384705, 410352, 461646, 512940, 615528, 683920, 769410, 923292, 1025880, 1154115, 1231056, 1538820, 1846584, 2051760, 2308230, 3077640, 3693168, 4616460, 6155280, 9232920, 18465840]

約数ペア:

[(1, 18465840), (2, 9232920), (3, 6155280), (4, 4616460), (5, 3693168), (6, 3077640), (8, 2308230), (9, 2051760), (10, 1846584), (12, 1538820), (15, 1231056), (16, 1154115), (18, 1025880), (20, 923292), (24, 769410), (27, 683920), (30, 615528), (36, 512940), (40, 461646), (45, 410352), (48, 384705), (54, 341960), (60, 307764), (72, 256470), (80, 230823), (83, 222480), (90, 205176), (103, 179280), (108, 170980), (120, 153882), (135, 136784), (144, 128235), (166, 111240), (180, 102588), (206, 89640), (216, 85490), (240, 76941), (249, 74160), (270, 68392), (309, 59760), (332, 55620), (360, 51294), (412, 44820), (415, 44496), (432, 42745), (498, 37080), (515, 35856), (540, 34196), (618, 29880), (664, 27810), (720, 25647), (747, 24720), (824, 22410), (830, 22248), (927, 19920), (996, 18540), (1030, 17928), (1080, 17098), (1236, 14940), (1245, 14832), (1328, 13905), (1494, 12360), (1545, 11952), (1648, 11205), (1660, 11124), (1854, 9960), (1992, 9270), (2060, 8964), (2160, 8549), (2241, 8240), (2472, 7470), (2490, 7416), (2781, 6640), (2988, 6180), (3090, 5976), (3320, 5562), (3708, 4980), (3735, 4944), (3984, 4635), (4120, 4482)]