66318640

素因数分解:

$2^4\times 5^1\times {\mathrm{347}}^1\times {\mathrm{2389}}^1$

素因数の和:2749

約数の個数: 40

約数和(自身を含む): 154699920

約数和(自身を除く): 88381280

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 347, 694, 1388, 1735, 2389, 2776, 3470, 4778, 5552, 6940, 9556, 11945, 13880, 19112, 23890, 27760, 38224, 47780, 95560, 191120, 828983, 1657966, 3315932, 4144915, 6631864, 8289830, 13263728, 16579660, 33159320, 66318640]

約数ペア:

[(1, 66318640), (2, 33159320), (4, 16579660), (5, 13263728), (8, 8289830), (10, 6631864), (16, 4144915), (20, 3315932), (40, 1657966), (80, 828983), (347, 191120), (694, 95560), (1388, 47780), (1735, 38224), (2389, 27760), (2776, 23890), (3470, 19112), (4778, 13880), (5552, 11945), (6940, 9556)]