2811240

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{137}}^1$

素因数の和:176

約数の個数: 128

約数和(自身を含む): 9936000

約数和(自身を除く): 7124760

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 19, 20, 24, 27, 30, 36, 38, 40, 45, 54, 57, 60, 72, 76, 90, 95, 108, 114, 120, 135, 137, 152, 171, 180, 190, 216, 228, 270, 274, 285, 342, 360, 380, 411, 456, 513, 540, 548, 570, 684, 685, 760, 822, 855, 1026, 1080, 1096, 1140, 1233, 1368, 1370, 1644, 1710, 2052, 2055, 2280, 2466, 2565, 2603, 2740, 3288, 3420, 3699, 4104, 4110, 4932, 5130, 5206, 5480, 6165, 6840, 7398, 7809, 8220, 9864, 10260, 10412, 12330, 13015, 14796, 15618, 16440, 18495, 20520, 20824, 23427, 24660, 26030, 29592, 31236, 36990, 39045, 46854, 49320, 52060, 62472, 70281, 73980, 78090, 93708, 104120, 117135, 140562, 147960, 156180, 187416, 234270, 281124, 312360, 351405, 468540, 562248, 702810, 937080, 1405620, 2811240]

約数ペア:

[(1, 2811240), (2, 1405620), (3, 937080), (4, 702810), (5, 562248), (6, 468540), (8, 351405), (9, 312360), (10, 281124), (12, 234270), (15, 187416), (18, 156180), (19, 147960), (20, 140562), (24, 117135), (27, 104120), (30, 93708), (36, 78090), (38, 73980), (40, 70281), (45, 62472), (54, 52060), (57, 49320), (60, 46854), (72, 39045), (76, 36990), (90, 31236), (95, 29592), (108, 26030), (114, 24660), (120, 23427), (135, 20824), (137, 20520), (152, 18495), (171, 16440), (180, 15618), (190, 14796), (216, 13015), (228, 12330), (270, 10412), (274, 10260), (285, 9864), (342, 8220), (360, 7809), (380, 7398), (411, 6840), (456, 6165), (513, 5480), (540, 5206), (548, 5130), (570, 4932), (684, 4110), (685, 4104), (760, 3699), (822, 3420), (855, 3288), (1026, 2740), (1080, 2603), (1096, 2565), (1140, 2466), (1233, 2280), (1368, 2055), (1370, 2052), (1644, 1710)]