31712520

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{1987}}^1$

素因数の和:2027

約数の個数: 128

約数和(自身を含む): 114508800

約数和(自身を除く): 82796280

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 19, 20, 21, 24, 28, 30, 35, 38, 40, 42, 56, 57, 60, 70, 76, 84, 95, 105, 114, 120, 133, 140, 152, 168, 190, 210, 228, 266, 280, 285, 380, 399, 420, 456, 532, 570, 665, 760, 798, 840, 1064, 1140, 1330, 1596, 1987, 1995, 2280, 2660, 3192, 3974, 3990, 5320, 5961, 7948, 7980, 9935, 11922, 13909, 15896, 15960, 19870, 23844, 27818, 29805, 37753, 39740, 41727, 47688, 55636, 59610, 69545, 75506, 79480, 83454, 111272, 113259, 119220, 139090, 151012, 166908, 188765, 208635, 226518, 238440, 264271, 278180, 302024, 333816, 377530, 417270, 453036, 528542, 556360, 566295, 755060, 792813, 834540, 906072, 1057084, 1132590, 1321355, 1510120, 1585626, 1669080, 2114168, 2265180, 2642710, 3171252, 3964065, 4530360, 5285420, 6342504, 7928130, 10570840, 15856260, 31712520]

約数ペア:

[(1, 31712520), (2, 15856260), (3, 10570840), (4, 7928130), (5, 6342504), (6, 5285420), (7, 4530360), (8, 3964065), (10, 3171252), (12, 2642710), (14, 2265180), (15, 2114168), (19, 1669080), (20, 1585626), (21, 1510120), (24, 1321355), (28, 1132590), (30, 1057084), (35, 906072), (38, 834540), (40, 792813), (42, 755060), (56, 566295), (57, 556360), (60, 528542), (70, 453036), (76, 417270), (84, 377530), (95, 333816), (105, 302024), (114, 278180), (120, 264271), (133, 238440), (140, 226518), (152, 208635), (168, 188765), (190, 166908), (210, 151012), (228, 139090), (266, 119220), (280, 113259), (285, 111272), (380, 83454), (399, 79480), (420, 75506), (456, 69545), (532, 59610), (570, 55636), (665, 47688), (760, 41727), (798, 39740), (840, 37753), (1064, 29805), (1140, 27818), (1330, 23844), (1596, 19870), (1987, 15960), (1995, 15896), (2280, 13909), (2660, 11922), (3192, 9935), (3974, 7980), (3990, 7948), (5320, 5961)]