28125412

素因数分解:

$2^2\times 7^2\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{367}}^1$

素因数の和:425

約数の個数: 72

約数和(自身を含む): 63431424

約数和(自身を除く): 35306012

約数列:

[1, 2, 4, 7, 14, 17, 23, 28, 34, 46, 49, 68, 92, 98, 119, 161, 196, 238, 322, 367, 391, 476, 644, 734, 782, 833, 1127, 1468, 1564, 1666, 2254, 2569, 2737, 3332, 4508, 5138, 5474, 6239, 8441, 10276, 10948, 12478, 16882, 17983, 19159, 24956, 33764, 35966, 38318, 43673, 59087, 71932, 76636, 87346, 118174, 143497, 174692, 236348, 286994, 305711, 413609, 573988, 611422, 827218, 1004479, 1222844, 1654436, 2008958, 4017916, 7031353, 14062706, 28125412]

約数ペア:

[(1, 28125412), (2, 14062706), (4, 7031353), (7, 4017916), (14, 2008958), (17, 1654436), (23, 1222844), (28, 1004479), (34, 827218), (46, 611422), (49, 573988), (68, 413609), (92, 305711), (98, 286994), (119, 236348), (161, 174692), (196, 143497), (238, 118174), (322, 87346), (367, 76636), (391, 71932), (476, 59087), (644, 43673), (734, 38318), (782, 35966), (833, 33764), (1127, 24956), (1468, 19159), (1564, 17983), (1666, 16882), (2254, 12478), (2569, 10948), (2737, 10276), (3332, 8441), (4508, 6239), (5138, 5474)]