18452720

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{1613}}^1$

素因数の和:1650

約数の個数: 80

約数和(自身を含む): 50434272

約数和(自身を除く): 31981552

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, 1613, 2288, 2860, 3226, 5720, 6452, 8065, 11440, 12904, 16130, 17743, 20969, 25808, 32260, 35486, 41938, 64520, 70972, 83876, 88715, 104845, 129040, 141944, 167752, 177430, 209690, 230659, 283888, 335504, 354860, 419380, 461318, 709720, 838760, 922636, 1153295, 1419440, 1677520, 1845272, 2306590, 3690544, 4613180, 9226360, 18452720]

約数ペア:

[(1, 18452720), (2, 9226360), (4, 4613180), (5, 3690544), (8, 2306590), (10, 1845272), (11, 1677520), (13, 1419440), (16, 1153295), (20, 922636), (22, 838760), (26, 709720), (40, 461318), (44, 419380), (52, 354860), (55, 335504), (65, 283888), (80, 230659), (88, 209690), (104, 177430), (110, 167752), (130, 141944), (143, 129040), (176, 104845), (208, 88715), (220, 83876), (260, 70972), (286, 64520), (440, 41938), (520, 35486), (572, 32260), (715, 25808), (880, 20969), (1040, 17743), (1144, 16130), (1430, 12904), (1613, 11440), (2288, 8065), (2860, 6452), (3226, 5720)]