217165725

素因数分解:

$3^3\times 5^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{59}}^1$

素因数の和:145

約数の個数: 192

約数和(自身を含む): 499968000

約数和(自身を除く): 282802275

約数列:

[1, 3, 5, 7, 9, 15, 19, 21, 25, 27, 35, 41, 45, 57, 59, 63, 75, 95, 105, 123, 133, 135, 171, 175, 177, 189, 205, 225, 285, 287, 295, 315, 369, 399, 413, 475, 513, 525, 531, 615, 665, 675, 779, 855, 861, 885, 945, 1025, 1107, 1121, 1197, 1239, 1425, 1435, 1475, 1575, 1593, 1845, 1995, 2065, 2337, 2419, 2565, 2583, 2655, 3075, 3325, 3363, 3591, 3717, 3895, 4275, 4305, 4425, 4725, 5453, 5535, 5605, 5985, 6195, 7011, 7175, 7257, 7749, 7847, 7965, 9225, 9975, 10089, 10325, 11151, 11685, 12095, 12825, 12915, 13275, 16359, 16815, 16933, 17955, 18585, 19475, 21033, 21525, 21771, 23541, 27265, 27675, 28025, 29925, 30267, 30975, 35055, 36285, 38745, 39235, 39825, 45961, 49077, 50445, 50799, 55755, 58425, 60475, 64575, 65313, 70623, 81795, 84075, 84665, 89775, 92925, 105165, 108855, 117705, 136325, 137883, 147231, 151335, 152397, 175275, 181425, 193725, 196175, 211869, 229805, 245385, 252225, 253995, 278775, 321727, 326565, 353115, 408975, 413649, 423325, 457191, 525825, 544275, 588525, 689415, 736155, 756675, 761985, 965181, 1059345, 1149025, 1226925, 1240947, 1269975, 1608635, 1632825, 1765575, 2068245, 2285955, 2895543, 3447075, 3680775, 3809925, 4825905, 5296725, 6204735, 8043175, 8686629, 10341225, 11429775, 14477715, 24129525, 31023675, 43433145, 72388575, 217165725]

約数ペア:

[(1, 217165725), (3, 72388575), (5, 43433145), (7, 31023675), (9, 24129525), (15, 14477715), (19, 11429775), (21, 10341225), (25, 8686629), (27, 8043175), (35, 6204735), (41, 5296725), (45, 4825905), (57, 3809925), (59, 3680775), (63, 3447075), (75, 2895543), (95, 2285955), (105, 2068245), (123, 1765575), (133, 1632825), (135, 1608635), (171, 1269975), (175, 1240947), (177, 1226925), (189, 1149025), (205, 1059345), (225, 965181), (285, 761985), (287, 756675), (295, 736155), (315, 689415), (369, 588525), (399, 544275), (413, 525825), (475, 457191), (513, 423325), (525, 413649), (531, 408975), (615, 353115), (665, 326565), (675, 321727), (779, 278775), (855, 253995), (861, 252225), (885, 245385), (945, 229805), (1025, 211869), (1107, 196175), (1121, 193725), (1197, 181425), (1239, 175275), (1425, 152397), (1435, 151335), (1475, 147231), (1575, 137883), (1593, 136325), (1845, 117705), (1995, 108855), (2065, 105165), (2337, 92925), (2419, 89775), (2565, 84665), (2583, 84075), (2655, 81795), (3075, 70623), (3325, 65313), (3363, 64575), (3591, 60475), (3717, 58425), (3895, 55755), (4275, 50799), (4305, 50445), (4425, 49077), (4725, 45961), (5453, 39825), (5535, 39235), (5605, 38745), (5985, 36285), (6195, 35055), (7011, 30975), (7175, 30267), (7257, 29925), (7749, 28025), (7847, 27675), (7965, 27265), (9225, 23541), (9975, 21771), (10089, 21525), (10325, 21033), (11151, 19475), (11685, 18585), (12095, 17955), (12825, 16933), (12915, 16815), (13275, 16359)]