18531760

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{173}}^1$

素因数の和:302

約数の個数: 80

約数和(自身を含む): 47121984

約数和(自身を除く): 28590224

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 103, 104, 130, 173, 206, 208, 260, 346, 412, 515, 520, 692, 824, 865, 1030, 1040, 1339, 1384, 1648, 1730, 2060, 2249, 2678, 2768, 3460, 4120, 4498, 5356, 6695, 6920, 8240, 8996, 10712, 11245, 13390, 13840, 17819, 17992, 21424, 22490, 26780, 35638, 35984, 44980, 53560, 71276, 89095, 89960, 107120, 142552, 178190, 179920, 231647, 285104, 356380, 463294, 712760, 926588, 1158235, 1425520, 1853176, 2316470, 3706352, 4632940, 9265880, 18531760]

約数ペア:

[(1, 18531760), (2, 9265880), (4, 4632940), (5, 3706352), (8, 2316470), (10, 1853176), (13, 1425520), (16, 1158235), (20, 926588), (26, 712760), (40, 463294), (52, 356380), (65, 285104), (80, 231647), (103, 179920), (104, 178190), (130, 142552), (173, 107120), (206, 89960), (208, 89095), (260, 71276), (346, 53560), (412, 44980), (515, 35984), (520, 35638), (692, 26780), (824, 22490), (865, 21424), (1030, 17992), (1040, 17819), (1339, 13840), (1384, 13390), (1648, 11245), (1730, 10712), (2060, 8996), (2249, 8240), (2678, 6920), (2768, 6695), (3460, 5356), (4120, 4498)]