18315440

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{1601}}^1$

素因数の和:1638

約数の個数: 80

約数和(自身を含む): 50059296

約数和(自身を除く): 31743856

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 16, 20, 22, 26, 40, 44, 52, 55, 65, 80, 88, 104, 110, 130, 143, 176, 208, 220, 260, 286, 440, 520, 572, 715, 880, 1040, 1144, 1430, 1601, 2288, 2860, 3202, 5720, 6404, 8005, 11440, 12808, 16010, 17611, 20813, 25616, 32020, 35222, 41626, 64040, 70444, 83252, 88055, 104065, 128080, 140888, 166504, 176110, 208130, 228943, 281776, 333008, 352220, 416260, 457886, 704440, 832520, 915772, 1144715, 1408880, 1665040, 1831544, 2289430, 3663088, 4578860, 9157720, 18315440]

約数ペア:

[(1, 18315440), (2, 9157720), (4, 4578860), (5, 3663088), (8, 2289430), (10, 1831544), (11, 1665040), (13, 1408880), (16, 1144715), (20, 915772), (22, 832520), (26, 704440), (40, 457886), (44, 416260), (52, 352220), (55, 333008), (65, 281776), (80, 228943), (88, 208130), (104, 176110), (110, 166504), (130, 140888), (143, 128080), (176, 104065), (208, 88055), (220, 83252), (260, 70444), (286, 64040), (440, 41626), (520, 35222), (572, 32020), (715, 25616), (880, 20813), (1040, 17611), (1144, 16010), (1430, 12808), (1601, 11440), (2288, 8005), (2860, 6404), (3202, 5720)]