239187760

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{431}}^1\times {\mathrm{991}}^1$

素因数の和:1442

約数の個数: 80

約数和(自身を含む): 637673472

約数和(自身を除く): 398485712

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 431, 560, 862, 991, 1724, 1982, 2155, 3017, 3448, 3964, 4310, 4955, 6034, 6896, 6937, 7928, 8620, 9910, 12068, 13874, 15085, 15856, 17240, 19820, 24136, 27748, 30170, 34480, 34685, 39640, 48272, 55496, 60340, 69370, 79280, 110992, 120680, 138740, 241360, 277480, 427121, 554960, 854242, 1708484, 2135605, 2989847, 3416968, 4271210, 5979694, 6833936, 8542420, 11959388, 14949235, 17084840, 23918776, 29898470, 34169680, 47837552, 59796940, 119593880, 239187760]

約数ペア:

[(1, 239187760), (2, 119593880), (4, 59796940), (5, 47837552), (7, 34169680), (8, 29898470), (10, 23918776), (14, 17084840), (16, 14949235), (20, 11959388), (28, 8542420), (35, 6833936), (40, 5979694), (56, 4271210), (70, 3416968), (80, 2989847), (112, 2135605), (140, 1708484), (280, 854242), (431, 554960), (560, 427121), (862, 277480), (991, 241360), (1724, 138740), (1982, 120680), (2155, 110992), (3017, 79280), (3448, 69370), (3964, 60340), (4310, 55496), (4955, 48272), (6034, 39640), (6896, 34685), (6937, 34480), (7928, 30170), (8620, 27748), (9910, 24136), (12068, 19820), (13874, 17240), (15085, 15856)]