18028080

素因数分解:

$2^4\times 3^2\times 5^1\times 7^3\times {\mathrm{73}}^1$

素因数の和:113

約数の個数: 240

約数和(自身を含む): 71572800

約数和(自身を除く): 53544720

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 35, 36, 40, 42, 45, 48, 49, 56, 60, 63, 70, 72, 73, 80, 84, 90, 98, 105, 112, 120, 126, 140, 144, 146, 147, 168, 180, 196, 210, 219, 240, 245, 252, 280, 292, 294, 315, 336, 343, 360, 365, 392, 420, 438, 441, 490, 504, 511, 560, 584, 588, 630, 657, 686, 720, 730, 735, 784, 840, 876, 882, 980, 1008, 1022, 1029, 1095, 1168, 1176, 1260, 1314, 1372, 1460, 1470, 1533, 1680, 1715, 1752, 1764, 1960, 2044, 2058, 2190, 2205, 2352, 2520, 2555, 2628, 2744, 2920, 2940, 3066, 3087, 3285, 3430, 3504, 3528, 3577, 3920, 4088, 4116, 4380, 4410, 4599, 5040, 5110, 5145, 5256, 5488, 5840, 5880, 6132, 6174, 6570, 6860, 7056, 7154, 7665, 8176, 8232, 8760, 8820, 9198, 10220, 10290, 10512, 10731, 11760, 12264, 12348, 13140, 13720, 14308, 15330, 15435, 16464, 17520, 17640, 17885, 18396, 20440, 20580, 21462, 22995, 24528, 24696, 25039, 26280, 27440, 28616, 30660, 30870, 32193, 35280, 35770, 36792, 40880, 41160, 42924, 45990, 49392, 50078, 52560, 53655, 57232, 61320, 61740, 64386, 71540, 73584, 75117, 82320, 85848, 91980, 100156, 107310, 122640, 123480, 125195, 128772, 143080, 150234, 160965, 171696, 183960, 200312, 214620, 225351, 246960, 250390, 257544, 286160, 300468, 321930, 367920, 375585, 400624, 429240, 450702, 500780, 515088, 600936, 643860, 751170, 858480, 901404, 1001560, 1126755, 1201872, 1287720, 1502340, 1802808, 2003120, 2253510, 2575440, 3004680, 3605616, 4507020, 6009360, 9014040, 18028080]

約数ペア:

[(1, 18028080), (2, 9014040), (3, 6009360), (4, 4507020), (5, 3605616), (6, 3004680), (7, 2575440), (8, 2253510), (9, 2003120), (10, 1802808), (12, 1502340), (14, 1287720), (15, 1201872), (16, 1126755), (18, 1001560), (20, 901404), (21, 858480), (24, 751170), (28, 643860), (30, 600936), (35, 515088), (36, 500780), (40, 450702), (42, 429240), (45, 400624), (48, 375585), (49, 367920), (56, 321930), (60, 300468), (63, 286160), (70, 257544), (72, 250390), (73, 246960), (80, 225351), (84, 214620), (90, 200312), (98, 183960), (105, 171696), (112, 160965), (120, 150234), (126, 143080), (140, 128772), (144, 125195), (146, 123480), (147, 122640), (168, 107310), (180, 100156), (196, 91980), (210, 85848), (219, 82320), (240, 75117), (245, 73584), (252, 71540), (280, 64386), (292, 61740), (294, 61320), (315, 57232), (336, 53655), (343, 52560), (360, 50078), (365, 49392), (392, 45990), (420, 42924), (438, 41160), (441, 40880), (490, 36792), (504, 35770), (511, 35280), (560, 32193), (584, 30870), (588, 30660), (630, 28616), (657, 27440), (686, 26280), (720, 25039), (730, 24696), (735, 24528), (784, 22995), (840, 21462), (876, 20580), (882, 20440), (980, 18396), (1008, 17885), (1022, 17640), (1029, 17520), (1095, 16464), (1168, 15435), (1176, 15330), (1260, 14308), (1314, 13720), (1372, 13140), (1460, 12348), (1470, 12264), (1533, 11760), (1680, 10731), (1715, 10512), (1752, 10290), (1764, 10220), (1960, 9198), (2044, 8820), (2058, 8760), (2190, 8232), (2205, 8176), (2352, 7665), (2520, 7154), (2555, 7056), (2628, 6860), (2744, 6570), (2920, 6174), (2940, 6132), (3066, 5880), (3087, 5840), (3285, 5488), (3430, 5256), (3504, 5145), (3528, 5110), (3577, 5040), (3920, 4599), (4088, 4410), (4116, 4380)]