19987080

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{193}}^1\times {\mathrm{863}}^1$

素因数の和:1070

約数の個数: 64

約数和(自身を含む): 60341760

約数和(自身を除く): 40354680

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 193, 386, 579, 772, 863, 965, 1158, 1544, 1726, 1930, 2316, 2589, 2895, 3452, 3860, 4315, 4632, 5178, 5790, 6904, 7720, 8630, 10356, 11580, 12945, 17260, 20712, 23160, 25890, 34520, 51780, 103560, 166559, 333118, 499677, 666236, 832795, 999354, 1332472, 1665590, 1998708, 2498385, 3331180, 3997416, 4996770, 6662360, 9993540, 19987080]

約数ペア:

[(1, 19987080), (2, 9993540), (3, 6662360), (4, 4996770), (5, 3997416), (6, 3331180), (8, 2498385), (10, 1998708), (12, 1665590), (15, 1332472), (20, 999354), (24, 832795), (30, 666236), (40, 499677), (60, 333118), (120, 166559), (193, 103560), (386, 51780), (579, 34520), (772, 25890), (863, 23160), (965, 20712), (1158, 17260), (1544, 12945), (1726, 11580), (1930, 10356), (2316, 8630), (2589, 7720), (2895, 6904), (3452, 5790), (3860, 5178), (4315, 4632)]