25007080

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{67}}^1$

素因数の和:159

約数の個数: 128

約数和(自身を含む): 68935680

約数和(自身を除く): 43928600

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 31, 35, 40, 43, 56, 62, 67, 70, 86, 124, 134, 140, 155, 172, 215, 217, 248, 268, 280, 301, 310, 335, 344, 430, 434, 469, 536, 602, 620, 670, 860, 868, 938, 1085, 1204, 1240, 1333, 1340, 1505, 1720, 1736, 1876, 2077, 2170, 2345, 2408, 2666, 2680, 2881, 3010, 3752, 4154, 4340, 4690, 5332, 5762, 6020, 6665, 8308, 8680, 9331, 9380, 10385, 10664, 11524, 12040, 13330, 14405, 14539, 16616, 18662, 18760, 20167, 20770, 23048, 26660, 28810, 29078, 37324, 40334, 41540, 46655, 53320, 57620, 58156, 72695, 74648, 80668, 83080, 89311, 93310, 100835, 115240, 116312, 145390, 161336, 178622, 186620, 201670, 290780, 357244, 373240, 403340, 446555, 581560, 625177, 714488, 806680, 893110, 1250354, 1786220, 2500708, 3125885, 3572440, 5001416, 6251770, 12503540, 25007080]

約数ペア:

[(1, 25007080), (2, 12503540), (4, 6251770), (5, 5001416), (7, 3572440), (8, 3125885), (10, 2500708), (14, 1786220), (20, 1250354), (28, 893110), (31, 806680), (35, 714488), (40, 625177), (43, 581560), (56, 446555), (62, 403340), (67, 373240), (70, 357244), (86, 290780), (124, 201670), (134, 186620), (140, 178622), (155, 161336), (172, 145390), (215, 116312), (217, 115240), (248, 100835), (268, 93310), (280, 89311), (301, 83080), (310, 80668), (335, 74648), (344, 72695), (430, 58156), (434, 57620), (469, 53320), (536, 46655), (602, 41540), (620, 40334), (670, 37324), (860, 29078), (868, 28810), (938, 26660), (1085, 23048), (1204, 20770), (1240, 20167), (1333, 18760), (1340, 18662), (1505, 16616), (1720, 14539), (1736, 14405), (1876, 13330), (2077, 12040), (2170, 11524), (2345, 10664), (2408, 10385), (2666, 9380), (2680, 9331), (2881, 8680), (3010, 8308), (3752, 6665), (4154, 6020), (4340, 5762), (4690, 5332)]