19740420

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{15667}}^1$

素因数の和:15689

約数の個数: 72

約数和(自身を含む): 68437824

約数和(自身を除く): 48697404

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 420, 630, 1260, 15667, 31334, 47001, 62668, 78335, 94002, 109669, 141003, 156670, 188004, 219338, 235005, 282006, 313340, 329007, 438676, 470010, 548345, 564012, 658014, 705015, 940020, 987021, 1096690, 1316028, 1410030, 1645035, 1974042, 2193380, 2820060, 3290070, 3948084, 4935105, 6580140, 9870210, 19740420]

約数ペア:

[(1, 19740420), (2, 9870210), (3, 6580140), (4, 4935105), (5, 3948084), (6, 3290070), (7, 2820060), (9, 2193380), (10, 1974042), (12, 1645035), (14, 1410030), (15, 1316028), (18, 1096690), (20, 987021), (21, 940020), (28, 705015), (30, 658014), (35, 564012), (36, 548345), (42, 470010), (45, 438676), (60, 329007), (63, 313340), (70, 282006), (84, 235005), (90, 219338), (105, 188004), (126, 156670), (140, 141003), (180, 109669), (210, 94002), (252, 78335), (315, 62668), (420, 47001), (630, 31334), (1260, 15667)]