20714820

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1$

素因数の和:130

約数の個数: 192

約数和(自身を含む): 71909376

約数和(自身を除く): 51194556

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 31, 35, 37, 42, 43, 60, 62, 70, 74, 84, 86, 93, 105, 111, 124, 129, 140, 148, 155, 172, 185, 186, 210, 215, 217, 222, 258, 259, 301, 310, 370, 372, 420, 430, 434, 444, 465, 516, 518, 555, 602, 620, 645, 651, 740, 777, 860, 868, 903, 930, 1036, 1085, 1110, 1147, 1204, 1290, 1295, 1302, 1333, 1505, 1554, 1591, 1806, 1860, 2170, 2220, 2294, 2580, 2590, 2604, 2666, 3010, 3108, 3182, 3255, 3441, 3612, 3885, 3999, 4340, 4515, 4588, 4773, 5180, 5332, 5735, 6020, 6364, 6510, 6665, 6882, 7770, 7955, 7998, 8029, 9030, 9331, 9546, 11137, 11470, 13020, 13330, 13764, 15540, 15910, 15996, 16058, 17205, 18060, 18662, 19092, 19995, 22274, 22940, 23865, 24087, 26660, 27993, 31820, 32116, 33411, 34410, 37324, 39990, 40145, 44548, 46655, 47730, 48174, 49321, 55685, 55986, 66822, 68820, 79980, 80290, 93310, 95460, 96348, 98642, 111370, 111972, 120435, 133644, 139965, 147963, 160580, 167055, 186620, 197284, 222740, 240870, 246605, 279930, 295926, 334110, 345247, 481740, 493210, 559860, 591852, 668220, 690494, 739815, 986420, 1035741, 1380988, 1479630, 1726235, 2071482, 2959260, 3452470, 4142964, 5178705, 6904940, 10357410, 20714820]

約数ペア:

[(1, 20714820), (2, 10357410), (3, 6904940), (4, 5178705), (5, 4142964), (6, 3452470), (7, 2959260), (10, 2071482), (12, 1726235), (14, 1479630), (15, 1380988), (20, 1035741), (21, 986420), (28, 739815), (30, 690494), (31, 668220), (35, 591852), (37, 559860), (42, 493210), (43, 481740), (60, 345247), (62, 334110), (70, 295926), (74, 279930), (84, 246605), (86, 240870), (93, 222740), (105, 197284), (111, 186620), (124, 167055), (129, 160580), (140, 147963), (148, 139965), (155, 133644), (172, 120435), (185, 111972), (186, 111370), (210, 98642), (215, 96348), (217, 95460), (222, 93310), (258, 80290), (259, 79980), (301, 68820), (310, 66822), (370, 55986), (372, 55685), (420, 49321), (430, 48174), (434, 47730), (444, 46655), (465, 44548), (516, 40145), (518, 39990), (555, 37324), (602, 34410), (620, 33411), (645, 32116), (651, 31820), (740, 27993), (777, 26660), (860, 24087), (868, 23865), (903, 22940), (930, 22274), (1036, 19995), (1085, 19092), (1110, 18662), (1147, 18060), (1204, 17205), (1290, 16058), (1295, 15996), (1302, 15910), (1333, 15540), (1505, 13764), (1554, 13330), (1591, 13020), (1806, 11470), (1860, 11137), (2170, 9546), (2220, 9331), (2294, 9030), (2580, 8029), (2590, 7998), (2604, 7955), (2666, 7770), (3010, 6882), (3108, 6665), (3182, 6510), (3255, 6364), (3441, 6020), (3612, 5735), (3885, 5332), (3999, 5180), (4340, 4773), (4515, 4588)]