20047440

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{11933}}^1$

素因数の和:11956

約数の個数: 80

約数和(自身を含む): 71031168

約数和(自身を除く): 50983728

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 70, 80, 84, 105, 112, 120, 140, 168, 210, 240, 280, 336, 420, 560, 840, 1680, 11933, 23866, 35799, 47732, 59665, 71598, 83531, 95464, 119330, 143196, 167062, 178995, 190928, 238660, 250593, 286392, 334124, 357990, 417655, 477320, 501186, 572784, 668248, 715980, 835310, 954640, 1002372, 1252965, 1336496, 1431960, 1670620, 2004744, 2505930, 2863920, 3341240, 4009488, 5011860, 6682480, 10023720, 20047440]

約数ペア:

[(1, 20047440), (2, 10023720), (3, 6682480), (4, 5011860), (5, 4009488), (6, 3341240), (7, 2863920), (8, 2505930), (10, 2004744), (12, 1670620), (14, 1431960), (15, 1336496), (16, 1252965), (20, 1002372), (21, 954640), (24, 835310), (28, 715980), (30, 668248), (35, 572784), (40, 501186), (42, 477320), (48, 417655), (56, 357990), (60, 334124), (70, 286392), (80, 250593), (84, 238660), (105, 190928), (112, 178995), (120, 167062), (140, 143196), (168, 119330), (210, 95464), (240, 83531), (280, 71598), (336, 59665), (420, 47732), (560, 35799), (840, 23866), (1680, 11933)]