20423880

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{18911}}^1$

素因数の和:18931

約数の個数: 64

約数和(自身を含む): 68083200

約数和(自身を除く): 47659320

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 54, 60, 72, 90, 108, 120, 135, 180, 216, 270, 360, 540, 1080, 18911, 37822, 56733, 75644, 94555, 113466, 151288, 170199, 189110, 226932, 283665, 340398, 378220, 453864, 510597, 567330, 680796, 756440, 850995, 1021194, 1134660, 1361592, 1701990, 2042388, 2269320, 2552985, 3403980, 4084776, 5105970, 6807960, 10211940, 20423880]

約数ペア:

[(1, 20423880), (2, 10211940), (3, 6807960), (4, 5105970), (5, 4084776), (6, 3403980), (8, 2552985), (9, 2269320), (10, 2042388), (12, 1701990), (15, 1361592), (18, 1134660), (20, 1021194), (24, 850995), (27, 756440), (30, 680796), (36, 567330), (40, 510597), (45, 453864), (54, 378220), (60, 340398), (72, 283665), (90, 226932), (108, 189110), (120, 170199), (135, 151288), (180, 113466), (216, 94555), (270, 75644), (360, 56733), (540, 37822), (1080, 18911)]