209522025

素因数分解:

$3^3\times 5^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^2$

素因数の和:117

約数の個数: 144

約数和(自身を含む): 443275200

約数和(自身を除く): 233753175

約数列:

[1, 3, 5, 9, 15, 17, 19, 25, 27, 31, 45, 51, 57, 75, 85, 93, 95, 135, 153, 155, 171, 225, 255, 279, 285, 323, 425, 459, 465, 475, 513, 527, 589, 675, 765, 775, 837, 855, 961, 969, 1275, 1395, 1425, 1581, 1615, 1767, 2295, 2325, 2565, 2635, 2883, 2907, 2945, 3825, 4185, 4275, 4743, 4805, 4845, 5301, 6975, 7905, 8075, 8649, 8721, 8835, 10013, 11475, 12825, 13175, 14229, 14415, 14535, 14725, 15903, 16337, 18259, 20925, 23715, 24025, 24225, 25947, 26505, 30039, 39525, 43245, 43605, 44175, 49011, 50065, 54777, 71145, 72075, 72675, 79515, 81685, 90117, 91295, 118575, 129735, 132525, 147033, 150195, 164331, 216225, 218025, 245055, 250325, 270351, 273885, 310403, 355725, 397575, 408425, 441099, 450585, 456475, 492993, 648675, 735165, 750975, 821655, 931209, 1225275, 1351755, 1369425, 1552015, 2205495, 2252925, 2464965, 2793627, 3675825, 4108275, 4656045, 6758775, 7760075, 8380881, 11027475, 12324825, 13968135, 23280225, 41904405, 69840675, 209522025]

約数ペア:

[(1, 209522025), (3, 69840675), (5, 41904405), (9, 23280225), (15, 13968135), (17, 12324825), (19, 11027475), (25, 8380881), (27, 7760075), (31, 6758775), (45, 4656045), (51, 4108275), (57, 3675825), (75, 2793627), (85, 2464965), (93, 2252925), (95, 2205495), (135, 1552015), (153, 1369425), (155, 1351755), (171, 1225275), (225, 931209), (255, 821655), (279, 750975), (285, 735165), (323, 648675), (425, 492993), (459, 456475), (465, 450585), (475, 441099), (513, 408425), (527, 397575), (589, 355725), (675, 310403), (765, 273885), (775, 270351), (837, 250325), (855, 245055), (961, 218025), (969, 216225), (1275, 164331), (1395, 150195), (1425, 147033), (1581, 132525), (1615, 129735), (1767, 118575), (2295, 91295), (2325, 90117), (2565, 81685), (2635, 79515), (2883, 72675), (2907, 72075), (2945, 71145), (3825, 54777), (4185, 50065), (4275, 49011), (4743, 44175), (4805, 43605), (4845, 43245), (5301, 39525), (6975, 30039), (7905, 26505), (8075, 25947), (8649, 24225), (8721, 24025), (8835, 23715), (10013, 20925), (11475, 18259), (12825, 16337), (13175, 15903), (14229, 14725), (14415, 14535)]