19745640

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{47}}^1\times {\mathrm{389}}^1$

素因数の和:456

約数の個数: 128

約数和(自身を含む): 67392000

約数和(自身を除く): 47646360

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 47, 54, 60, 72, 90, 94, 108, 120, 135, 141, 180, 188, 216, 235, 270, 282, 360, 376, 389, 423, 470, 540, 564, 705, 778, 846, 940, 1080, 1128, 1167, 1269, 1410, 1556, 1692, 1880, 1945, 2115, 2334, 2538, 2820, 3112, 3384, 3501, 3890, 4230, 4668, 5076, 5640, 5835, 6345, 7002, 7780, 8460, 9336, 10152, 10503, 11670, 12690, 14004, 15560, 16920, 17505, 18283, 21006, 23340, 25380, 28008, 35010, 36566, 42012, 46680, 50760, 52515, 54849, 70020, 73132, 84024, 91415, 105030, 109698, 140040, 146264, 164547, 182830, 210060, 219396, 274245, 329094, 365660, 420120, 438792, 493641, 548490, 658188, 731320, 822735, 987282, 1096980, 1316376, 1645470, 1974564, 2193960, 2468205, 3290940, 3949128, 4936410, 6581880, 9872820, 19745640]

約数ペア:

[(1, 19745640), (2, 9872820), (3, 6581880), (4, 4936410), (5, 3949128), (6, 3290940), (8, 2468205), (9, 2193960), (10, 1974564), (12, 1645470), (15, 1316376), (18, 1096980), (20, 987282), (24, 822735), (27, 731320), (30, 658188), (36, 548490), (40, 493641), (45, 438792), (47, 420120), (54, 365660), (60, 329094), (72, 274245), (90, 219396), (94, 210060), (108, 182830), (120, 164547), (135, 146264), (141, 140040), (180, 109698), (188, 105030), (216, 91415), (235, 84024), (270, 73132), (282, 70020), (360, 54849), (376, 52515), (389, 50760), (423, 46680), (470, 42012), (540, 36566), (564, 35010), (705, 28008), (778, 25380), (846, 23340), (940, 21006), (1080, 18283), (1128, 17505), (1167, 16920), (1269, 15560), (1410, 14004), (1556, 12690), (1692, 11670), (1880, 10503), (1945, 10152), (2115, 9336), (2334, 8460), (2538, 7780), (2820, 7002), (3112, 6345), (3384, 5835), (3501, 5640), (3890, 5076), (4230, 4668)]