18326840

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1$

素因数の和:145

約数の個数: 128

約数和(自身を含む): 50889600

約数和(自身を除く): 32562760

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 29, 35, 37, 40, 56, 58, 61, 70, 74, 116, 122, 140, 145, 148, 185, 203, 232, 244, 259, 280, 290, 296, 305, 370, 406, 427, 488, 518, 580, 610, 740, 812, 854, 1015, 1036, 1073, 1160, 1220, 1295, 1480, 1624, 1708, 1769, 2030, 2072, 2135, 2146, 2257, 2440, 2590, 3416, 3538, 4060, 4270, 4292, 4514, 5180, 5365, 7076, 7511, 8120, 8540, 8584, 8845, 9028, 10360, 10730, 11285, 12383, 14152, 15022, 15799, 17080, 17690, 18056, 21460, 22570, 24766, 30044, 31598, 35380, 37555, 42920, 45140, 49532, 60088, 61915, 63196, 65453, 70760, 75110, 78995, 90280, 99064, 123830, 126392, 130906, 150220, 157990, 247660, 261812, 300440, 315980, 327265, 458171, 495320, 523624, 631960, 654530, 916342, 1309060, 1832684, 2290855, 2618120, 3665368, 4581710, 9163420, 18326840]

約数ペア:

[(1, 18326840), (2, 9163420), (4, 4581710), (5, 3665368), (7, 2618120), (8, 2290855), (10, 1832684), (14, 1309060), (20, 916342), (28, 654530), (29, 631960), (35, 523624), (37, 495320), (40, 458171), (56, 327265), (58, 315980), (61, 300440), (70, 261812), (74, 247660), (116, 157990), (122, 150220), (140, 130906), (145, 126392), (148, 123830), (185, 99064), (203, 90280), (232, 78995), (244, 75110), (259, 70760), (280, 65453), (290, 63196), (296, 61915), (305, 60088), (370, 49532), (406, 45140), (427, 42920), (488, 37555), (518, 35380), (580, 31598), (610, 30044), (740, 24766), (812, 22570), (854, 21460), (1015, 18056), (1036, 17690), (1073, 17080), (1160, 15799), (1220, 15022), (1295, 14152), (1480, 12383), (1624, 11285), (1708, 10730), (1769, 10360), (2030, 9028), (2072, 8845), (2135, 8584), (2146, 8540), (2257, 8120), (2440, 7511), (2590, 7076), (3416, 5365), (3538, 5180), (4060, 4514), (4270, 4292)]