28112970

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1$

素因数の和:140

約数の個数: 128

約数和(自身を含む): 77045760

約数和(自身を除く): 48932790

約数列:

[1, 2, 3, 5, 6, 10, 15, 19, 30, 31, 37, 38, 43, 57, 62, 74, 86, 93, 95, 111, 114, 129, 155, 185, 186, 190, 215, 222, 258, 285, 310, 370, 430, 465, 555, 570, 589, 645, 703, 817, 930, 1110, 1147, 1178, 1290, 1333, 1406, 1591, 1634, 1767, 2109, 2294, 2451, 2666, 2945, 3182, 3441, 3515, 3534, 3999, 4085, 4218, 4773, 4902, 5735, 5890, 6665, 6882, 7030, 7955, 7998, 8170, 8835, 9546, 10545, 11470, 12255, 13330, 15910, 17205, 17670, 19995, 21090, 21793, 23865, 24510, 25327, 30229, 34410, 39990, 43586, 47730, 49321, 50654, 60458, 65379, 75981, 90687, 98642, 108965, 126635, 130758, 147963, 151145, 151962, 181374, 217930, 246605, 253270, 295926, 302290, 326895, 379905, 453435, 493210, 653790, 739815, 759810, 906870, 937099, 1479630, 1874198, 2811297, 4685495, 5622594, 9370990, 14056485, 28112970]

約数ペア:

[(1, 28112970), (2, 14056485), (3, 9370990), (5, 5622594), (6, 4685495), (10, 2811297), (15, 1874198), (19, 1479630), (30, 937099), (31, 906870), (37, 759810), (38, 739815), (43, 653790), (57, 493210), (62, 453435), (74, 379905), (86, 326895), (93, 302290), (95, 295926), (111, 253270), (114, 246605), (129, 217930), (155, 181374), (185, 151962), (186, 151145), (190, 147963), (215, 130758), (222, 126635), (258, 108965), (285, 98642), (310, 90687), (370, 75981), (430, 65379), (465, 60458), (555, 50654), (570, 49321), (589, 47730), (645, 43586), (703, 39990), (817, 34410), (930, 30229), (1110, 25327), (1147, 24510), (1178, 23865), (1290, 21793), (1333, 21090), (1406, 19995), (1591, 17670), (1634, 17205), (1767, 15910), (2109, 13330), (2294, 12255), (2451, 11470), (2666, 10545), (2945, 9546), (3182, 8835), (3441, 8170), (3515, 7998), (3534, 7955), (3999, 7030), (4085, 6882), (4218, 6665), (4773, 5890), (4902, 5735)]