18665640

素因数分解:

$2^3\times 3^4\times 5^1\times 7^1\times {\mathrm{823}}^1$

素因数の和:853

約数の個数: 160

約数和(自身を含む): 71786880

約数和(自身を除く): 53121240

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 27, 28, 30, 35, 36, 40, 42, 45, 54, 56, 60, 63, 70, 72, 81, 84, 90, 105, 108, 120, 126, 135, 140, 162, 168, 180, 189, 210, 216, 252, 270, 280, 315, 324, 360, 378, 405, 420, 504, 540, 567, 630, 648, 756, 810, 823, 840, 945, 1080, 1134, 1260, 1512, 1620, 1646, 1890, 2268, 2469, 2520, 2835, 3240, 3292, 3780, 4115, 4536, 4938, 5670, 5761, 6584, 7407, 7560, 8230, 9876, 11340, 11522, 12345, 14814, 16460, 17283, 19752, 22221, 22680, 23044, 24690, 28805, 29628, 32920, 34566, 37035, 44442, 46088, 49380, 51849, 57610, 59256, 66663, 69132, 74070, 86415, 88884, 98760, 103698, 111105, 115220, 133326, 138264, 148140, 155547, 172830, 177768, 207396, 222210, 230440, 259245, 266652, 296280, 311094, 333315, 345660, 414792, 444420, 466641, 518490, 533304, 622188, 666630, 691320, 777735, 888840, 933282, 1036980, 1244376, 1333260, 1555470, 1866564, 2073960, 2333205, 2666520, 3110940, 3733128, 4666410, 6221880, 9332820, 18665640]

約数ペア:

[(1, 18665640), (2, 9332820), (3, 6221880), (4, 4666410), (5, 3733128), (6, 3110940), (7, 2666520), (8, 2333205), (9, 2073960), (10, 1866564), (12, 1555470), (14, 1333260), (15, 1244376), (18, 1036980), (20, 933282), (21, 888840), (24, 777735), (27, 691320), (28, 666630), (30, 622188), (35, 533304), (36, 518490), (40, 466641), (42, 444420), (45, 414792), (54, 345660), (56, 333315), (60, 311094), (63, 296280), (70, 266652), (72, 259245), (81, 230440), (84, 222210), (90, 207396), (105, 177768), (108, 172830), (120, 155547), (126, 148140), (135, 138264), (140, 133326), (162, 115220), (168, 111105), (180, 103698), (189, 98760), (210, 88884), (216, 86415), (252, 74070), (270, 69132), (280, 66663), (315, 59256), (324, 57610), (360, 51849), (378, 49380), (405, 46088), (420, 44442), (504, 37035), (540, 34566), (567, 32920), (630, 29628), (648, 28805), (756, 24690), (810, 23044), (823, 22680), (840, 22221), (945, 19752), (1080, 17283), (1134, 16460), (1260, 14814), (1512, 12345), (1620, 11522), (1646, 11340), (1890, 9876), (2268, 8230), (2469, 7560), (2520, 7407), (2835, 6584), (3240, 5761), (3292, 5670), (3780, 4938), (4115, 4536)]