18829020

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{127}}^1\times {\mathrm{353}}^1$

素因数の和:499

約数の個数: 96

約数和(自身を含む): 60899328

約数和(自身を除く): 42070308

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 127, 140, 210, 254, 353, 381, 420, 508, 635, 706, 762, 889, 1059, 1270, 1412, 1524, 1765, 1778, 1905, 2118, 2471, 2540, 2667, 3530, 3556, 3810, 4236, 4445, 4942, 5295, 5334, 7060, 7413, 7620, 8890, 9884, 10590, 10668, 12355, 13335, 14826, 17780, 21180, 24710, 26670, 29652, 37065, 44831, 49420, 53340, 74130, 89662, 134493, 148260, 179324, 224155, 268986, 313817, 448310, 537972, 627634, 672465, 896620, 941451, 1255268, 1344930, 1569085, 1882902, 2689860, 3138170, 3765804, 4707255, 6276340, 9414510, 18829020]

約数ペア:

[(1, 18829020), (2, 9414510), (3, 6276340), (4, 4707255), (5, 3765804), (6, 3138170), (7, 2689860), (10, 1882902), (12, 1569085), (14, 1344930), (15, 1255268), (20, 941451), (21, 896620), (28, 672465), (30, 627634), (35, 537972), (42, 448310), (60, 313817), (70, 268986), (84, 224155), (105, 179324), (127, 148260), (140, 134493), (210, 89662), (254, 74130), (353, 53340), (381, 49420), (420, 44831), (508, 37065), (635, 29652), (706, 26670), (762, 24710), (889, 21180), (1059, 17780), (1270, 14826), (1412, 13335), (1524, 12355), (1765, 10668), (1778, 10590), (1905, 9884), (2118, 8890), (2471, 7620), (2540, 7413), (2667, 7060), (3530, 5334), (3556, 5295), (3810, 4942), (4236, 4445)]