28777860

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{149}}^1$

素因数の和:230

約数の個数: 144

約数和(自身を含む): 93366000

約数和(自身を除く): 64588140

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 29, 30, 36, 37, 45, 58, 60, 74, 87, 90, 111, 116, 145, 148, 149, 174, 180, 185, 222, 261, 290, 298, 333, 348, 370, 435, 444, 447, 522, 555, 580, 596, 666, 740, 745, 870, 894, 1044, 1073, 1110, 1305, 1332, 1341, 1490, 1665, 1740, 1788, 2146, 2220, 2235, 2610, 2682, 2980, 3219, 3330, 4292, 4321, 4470, 5220, 5364, 5365, 5513, 6438, 6660, 6705, 8642, 8940, 9657, 10730, 11026, 12876, 12963, 13410, 16095, 16539, 17284, 19314, 21460, 21605, 22052, 25926, 26820, 27565, 32190, 33078, 38628, 38889, 43210, 48285, 49617, 51852, 55130, 64380, 64815, 66156, 77778, 82695, 86420, 96570, 99234, 110260, 129630, 155556, 159877, 165390, 193140, 194445, 198468, 248085, 259260, 319754, 330780, 388890, 479631, 496170, 639508, 777780, 799385, 959262, 992340, 1438893, 1598770, 1918524, 2398155, 2877786, 3197540, 4796310, 5755572, 7194465, 9592620, 14388930, 28777860]

約数ペア:

[(1, 28777860), (2, 14388930), (3, 9592620), (4, 7194465), (5, 5755572), (6, 4796310), (9, 3197540), (10, 2877786), (12, 2398155), (15, 1918524), (18, 1598770), (20, 1438893), (29, 992340), (30, 959262), (36, 799385), (37, 777780), (45, 639508), (58, 496170), (60, 479631), (74, 388890), (87, 330780), (90, 319754), (111, 259260), (116, 248085), (145, 198468), (148, 194445), (149, 193140), (174, 165390), (180, 159877), (185, 155556), (222, 129630), (261, 110260), (290, 99234), (298, 96570), (333, 86420), (348, 82695), (370, 77778), (435, 66156), (444, 64815), (447, 64380), (522, 55130), (555, 51852), (580, 49617), (596, 48285), (666, 43210), (740, 38889), (745, 38628), (870, 33078), (894, 32190), (1044, 27565), (1073, 26820), (1110, 25926), (1305, 22052), (1332, 21605), (1341, 21460), (1490, 19314), (1665, 17284), (1740, 16539), (1788, 16095), (2146, 13410), (2220, 12963), (2235, 12876), (2610, 11026), (2682, 10730), (2980, 9657), (3219, 8940), (3330, 8642), (4292, 6705), (4321, 6660), (4470, 6438), (5220, 5513), (5364, 5365)]