1218787080

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{30871}}^1$

素因数の和:30939

約数の個数: 128

約数和(自身を含む): 4267745280

約数和(自身を除く): 3048958200

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 47, 56, 60, 70, 84, 94, 105, 120, 140, 141, 168, 188, 210, 235, 280, 282, 329, 376, 420, 470, 564, 658, 705, 840, 940, 987, 1128, 1316, 1410, 1645, 1880, 1974, 2632, 2820, 3290, 3948, 4935, 5640, 6580, 7896, 9870, 13160, 19740, 30871, 39480, 61742, 92613, 123484, 154355, 185226, 216097, 246968, 308710, 370452, 432194, 463065, 617420, 648291, 740904, 864388, 926130, 1080485, 1234840, 1296582, 1450937, 1728776, 1852260, 2160970, 2593164, 2901874, 3241455, 3704520, 4321940, 4352811, 5186328, 5803748, 6482910, 7254685, 8643880, 8705622, 10156559, 11607496, 12965820, 14509370, 17411244, 20313118, 21764055, 25931640, 29018740, 30469677, 34822488, 40626236, 43528110, 50782795, 58037480, 60939354, 81252472, 87056220, 101565590, 121878708, 152348385, 174112440, 203131180, 243757416, 304696770, 406262360, 609393540, 1218787080]

約数ペア:

[(1, 1218787080), (2, 609393540), (3, 406262360), (4, 304696770), (5, 243757416), (6, 203131180), (7, 174112440), (8, 152348385), (10, 121878708), (12, 101565590), (14, 87056220), (15, 81252472), (20, 60939354), (21, 58037480), (24, 50782795), (28, 43528110), (30, 40626236), (35, 34822488), (40, 30469677), (42, 29018740), (47, 25931640), (56, 21764055), (60, 20313118), (70, 17411244), (84, 14509370), (94, 12965820), (105, 11607496), (120, 10156559), (140, 8705622), (141, 8643880), (168, 7254685), (188, 6482910), (210, 5803748), (235, 5186328), (280, 4352811), (282, 4321940), (329, 3704520), (376, 3241455), (420, 2901874), (470, 2593164), (564, 2160970), (658, 1852260), (705, 1728776), (840, 1450937), (940, 1296582), (987, 1234840), (1128, 1080485), (1316, 926130), (1410, 864388), (1645, 740904), (1880, 648291), (1974, 617420), (2632, 463065), (2820, 432194), (3290, 370452), (3948, 308710), (4935, 246968), (5640, 216097), (6580, 185226), (7896, 154355), (9870, 123484), (13160, 92613), (19740, 61742), (30871, 39480)]