18745920

素因数分解:

$2^6\times 3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{283}}^1$

素因数の和:329

約数の個数: 168

約数和(自身を含む): 67519296

約数和(自身を除く): 48773376

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 23, 24, 30, 32, 36, 40, 45, 46, 48, 60, 64, 69, 72, 80, 90, 92, 96, 115, 120, 138, 144, 160, 180, 184, 192, 207, 230, 240, 276, 283, 288, 320, 345, 360, 368, 414, 460, 480, 552, 566, 576, 690, 720, 736, 828, 849, 920, 960, 1035, 1104, 1132, 1380, 1415, 1440, 1472, 1656, 1698, 1840, 2070, 2208, 2264, 2547, 2760, 2830, 2880, 3312, 3396, 3680, 4140, 4245, 4416, 4528, 5094, 5520, 5660, 6509, 6624, 6792, 7360, 8280, 8490, 9056, 10188, 11040, 11320, 12735, 13018, 13248, 13584, 16560, 16980, 18112, 19527, 20376, 22080, 22640, 25470, 26036, 27168, 32545, 33120, 33960, 39054, 40752, 45280, 50940, 52072, 54336, 58581, 65090, 66240, 67920, 78108, 81504, 90560, 97635, 101880, 104144, 117162, 130180, 135840, 156216, 163008, 195270, 203760, 208288, 234324, 260360, 271680, 292905, 312432, 390540, 407520, 416576, 468648, 520720, 585810, 624864, 781080, 815040, 937296, 1041440, 1171620, 1249728, 1562160, 1874592, 2082880, 2343240, 3124320, 3749184, 4686480, 6248640, 9372960, 18745920]

約数ペア:

[(1, 18745920), (2, 9372960), (3, 6248640), (4, 4686480), (5, 3749184), (6, 3124320), (8, 2343240), (9, 2082880), (10, 1874592), (12, 1562160), (15, 1249728), (16, 1171620), (18, 1041440), (20, 937296), (23, 815040), (24, 781080), (30, 624864), (32, 585810), (36, 520720), (40, 468648), (45, 416576), (46, 407520), (48, 390540), (60, 312432), (64, 292905), (69, 271680), (72, 260360), (80, 234324), (90, 208288), (92, 203760), (96, 195270), (115, 163008), (120, 156216), (138, 135840), (144, 130180), (160, 117162), (180, 104144), (184, 101880), (192, 97635), (207, 90560), (230, 81504), (240, 78108), (276, 67920), (283, 66240), (288, 65090), (320, 58581), (345, 54336), (360, 52072), (368, 50940), (414, 45280), (460, 40752), (480, 39054), (552, 33960), (566, 33120), (576, 32545), (690, 27168), (720, 26036), (736, 25470), (828, 22640), (849, 22080), (920, 20376), (960, 19527), (1035, 18112), (1104, 16980), (1132, 16560), (1380, 13584), (1415, 13248), (1440, 13018), (1472, 12735), (1656, 11320), (1698, 11040), (1840, 10188), (2070, 9056), (2208, 8490), (2264, 8280), (2547, 7360), (2760, 6792), (2830, 6624), (2880, 6509), (3312, 5660), (3396, 5520), (3680, 5094), (4140, 4528), (4245, 4416)]