87389720

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{198613}}^1$

素因数の和:198635

約数の個数: 32

約数和(自身を含む): 214503120

約数和(自身を除く): 127113400

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 198613, 397226, 794452, 993065, 1588904, 1986130, 2184743, 3972260, 4369486, 7944520, 8738972, 10923715, 17477944, 21847430, 43694860, 87389720]

約数ペア:

[(1, 87389720), (2, 43694860), (4, 21847430), (5, 17477944), (8, 10923715), (10, 8738972), (11, 7944520), (20, 4369486), (22, 3972260), (40, 2184743), (44, 1986130), (55, 1588904), (88, 993065), (110, 794452), (220, 397226), (440, 198613)]