20117520

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{27941}}^1$

素因数の和:27960

約数の個数: 60

約数和(自身を含む): 67563756

約数和(自身を除く): 47446236

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 180, 240, 360, 720, 27941, 55882, 83823, 111764, 139705, 167646, 223528, 251469, 279410, 335292, 419115, 447056, 502938, 558820, 670584, 838230, 1005876, 1117640, 1257345, 1341168, 1676460, 2011752, 2235280, 2514690, 3352920, 4023504, 5029380, 6705840, 10058760, 20117520]

約数ペア:

[(1, 20117520), (2, 10058760), (3, 6705840), (4, 5029380), (5, 4023504), (6, 3352920), (8, 2514690), (9, 2235280), (10, 2011752), (12, 1676460), (15, 1341168), (16, 1257345), (18, 1117640), (20, 1005876), (24, 838230), (30, 670584), (36, 558820), (40, 502938), (45, 447056), (48, 419115), (60, 335292), (72, 279410), (80, 251469), (90, 223528), (120, 167646), (144, 139705), (180, 111764), (240, 83823), (360, 55882), (720, 27941)]