28020090

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{107}}^1$

素因数の和:196

約数の個数: 128

約数和(自身を含む): 82114560

約数和(自身を除く): 54094470

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 29, 30, 35, 42, 43, 58, 70, 86, 87, 105, 107, 129, 145, 174, 203, 210, 214, 215, 258, 290, 301, 321, 406, 430, 435, 535, 602, 609, 642, 645, 749, 870, 903, 1015, 1070, 1218, 1247, 1290, 1498, 1505, 1605, 1806, 2030, 2247, 2494, 3010, 3045, 3103, 3210, 3741, 3745, 4494, 4515, 4601, 6090, 6206, 6235, 7482, 7490, 8729, 9030, 9202, 9309, 11235, 12470, 13803, 15515, 17458, 18618, 18705, 21721, 22470, 23005, 26187, 27606, 31030, 32207, 37410, 43442, 43645, 46010, 46545, 52374, 64414, 65163, 69015, 87290, 93090, 96621, 108605, 130326, 130935, 133429, 138030, 161035, 193242, 217210, 261870, 266858, 322070, 325815, 400287, 483105, 651630, 667145, 800574, 934003, 966210, 1334290, 1868006, 2001435, 2802009, 4002870, 4670015, 5604018, 9340030, 14010045, 28020090]

約数ペア:

[(1, 28020090), (2, 14010045), (3, 9340030), (5, 5604018), (6, 4670015), (7, 4002870), (10, 2802009), (14, 2001435), (15, 1868006), (21, 1334290), (29, 966210), (30, 934003), (35, 800574), (42, 667145), (43, 651630), (58, 483105), (70, 400287), (86, 325815), (87, 322070), (105, 266858), (107, 261870), (129, 217210), (145, 193242), (174, 161035), (203, 138030), (210, 133429), (214, 130935), (215, 130326), (258, 108605), (290, 96621), (301, 93090), (321, 87290), (406, 69015), (430, 65163), (435, 64414), (535, 52374), (602, 46545), (609, 46010), (642, 43645), (645, 43442), (749, 37410), (870, 32207), (903, 31030), (1015, 27606), (1070, 26187), (1218, 23005), (1247, 22470), (1290, 21721), (1498, 18705), (1505, 18618), (1605, 17458), (1806, 15515), (2030, 13803), (2247, 12470), (2494, 11235), (3010, 9309), (3045, 9202), (3103, 9030), (3210, 8729), (3741, 7490), (3745, 7482), (4494, 6235), (4515, 6206), (4601, 6090)]