19836320

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{199}}^1$

素因数の和:310

約数の個数: 96

約数和(自身を含む): 54432000

約数和(自身を除く): 34595680

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 70, 80, 89, 112, 140, 160, 178, 199, 224, 280, 356, 398, 445, 560, 623, 712, 796, 890, 995, 1120, 1246, 1393, 1424, 1592, 1780, 1990, 2492, 2786, 2848, 3115, 3184, 3560, 3980, 4984, 5572, 6230, 6368, 6965, 7120, 7960, 9968, 11144, 12460, 13930, 14240, 15920, 17711, 19936, 22288, 24920, 27860, 31840, 35422, 44576, 49840, 55720, 70844, 88555, 99680, 111440, 123977, 141688, 177110, 222880, 247954, 283376, 354220, 495908, 566752, 619885, 708440, 991816, 1239770, 1416880, 1983632, 2479540, 2833760, 3967264, 4959080, 9918160, 19836320]

約数ペア:

[(1, 19836320), (2, 9918160), (4, 4959080), (5, 3967264), (7, 2833760), (8, 2479540), (10, 1983632), (14, 1416880), (16, 1239770), (20, 991816), (28, 708440), (32, 619885), (35, 566752), (40, 495908), (56, 354220), (70, 283376), (80, 247954), (89, 222880), (112, 177110), (140, 141688), (160, 123977), (178, 111440), (199, 99680), (224, 88555), (280, 70844), (356, 55720), (398, 49840), (445, 44576), (560, 35422), (623, 31840), (712, 27860), (796, 24920), (890, 22288), (995, 19936), (1120, 17711), (1246, 15920), (1393, 14240), (1424, 13930), (1592, 12460), (1780, 11144), (1990, 9968), (2492, 7960), (2786, 7120), (2848, 6965), (3115, 6368), (3184, 6230), (3560, 5572), (3980, 4984)]