138052520

素因数分解:

$2^3\times 5^1\times {\mathrm{983}}^1\times {\mathrm{3511}}^1$

素因数の和:4505

約数の個数: 32

約数和(自身を含む): 311022720

約数和(自身を除く): 172970200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 983, 1966, 3511, 3932, 4915, 7022, 7864, 9830, 14044, 17555, 19660, 28088, 35110, 39320, 70220, 140440, 3451313, 6902626, 13805252, 17256565, 27610504, 34513130, 69026260, 138052520]

約数ペア:

[(1, 138052520), (2, 69026260), (4, 34513130), (5, 27610504), (8, 17256565), (10, 13805252), (20, 6902626), (40, 3451313), (983, 140440), (1966, 70220), (3511, 39320), (3932, 35110), (4915, 28088), (7022, 19660), (7864, 17555), (9830, 14044)]