28281690

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{149}}^1$

素因数の和:221

約数の個数: 128

約数和(自身を含む): 82080000

約数和(自身を除く): 53798310

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 19, 27, 30, 37, 38, 45, 54, 57, 74, 90, 95, 111, 114, 135, 149, 171, 185, 190, 222, 270, 285, 298, 333, 342, 370, 447, 513, 555, 570, 666, 703, 745, 855, 894, 999, 1026, 1110, 1341, 1406, 1490, 1665, 1710, 1998, 2109, 2235, 2565, 2682, 2831, 3330, 3515, 4023, 4218, 4470, 4995, 5130, 5513, 5662, 6327, 6705, 7030, 8046, 8493, 9990, 10545, 11026, 12654, 13410, 14155, 16539, 16986, 18981, 20115, 21090, 25479, 27565, 28310, 31635, 33078, 37962, 40230, 42465, 49617, 50958, 55130, 63270, 76437, 82695, 84930, 94905, 99234, 104747, 127395, 148851, 152874, 165390, 189810, 209494, 248085, 254790, 297702, 314241, 382185, 496170, 523735, 628482, 744255, 764370, 942723, 1047470, 1488510, 1571205, 1885446, 2828169, 3142410, 4713615, 5656338, 9427230, 14140845, 28281690]

約数ペア:

[(1, 28281690), (2, 14140845), (3, 9427230), (5, 5656338), (6, 4713615), (9, 3142410), (10, 2828169), (15, 1885446), (18, 1571205), (19, 1488510), (27, 1047470), (30, 942723), (37, 764370), (38, 744255), (45, 628482), (54, 523735), (57, 496170), (74, 382185), (90, 314241), (95, 297702), (111, 254790), (114, 248085), (135, 209494), (149, 189810), (171, 165390), (185, 152874), (190, 148851), (222, 127395), (270, 104747), (285, 99234), (298, 94905), (333, 84930), (342, 82695), (370, 76437), (447, 63270), (513, 55130), (555, 50958), (570, 49617), (666, 42465), (703, 40230), (745, 37962), (855, 33078), (894, 31635), (999, 28310), (1026, 27565), (1110, 25479), (1341, 21090), (1406, 20115), (1490, 18981), (1665, 16986), (1710, 16539), (1998, 14155), (2109, 13410), (2235, 12654), (2565, 11026), (2682, 10545), (2831, 9990), (3330, 8493), (3515, 8046), (4023, 7030), (4218, 6705), (4470, 6327), (4995, 5662), (5130, 5513)]