28016316

素因数分解:

$2^2\times 3^2\times {\mathrm{71}}^1\times {\mathrm{97}}^1\times {\mathrm{113}}^1$

素因数の和:291

約数の個数: 72

約数和(自身を含む): 73198944

約数和(自身を除く): 45182628

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 71, 97, 113, 142, 194, 213, 226, 284, 291, 339, 388, 426, 452, 582, 639, 678, 852, 873, 1017, 1164, 1278, 1356, 1746, 2034, 2556, 3492, 4068, 6887, 8023, 10961, 13774, 16046, 20661, 21922, 24069, 27548, 32092, 32883, 41322, 43844, 48138, 61983, 65766, 72207, 82644, 96276, 98649, 123966, 131532, 144414, 197298, 247932, 288828, 394596, 778231, 1556462, 2334693, 3112924, 4669386, 7004079, 9338772, 14008158, 28016316]

約数ペア:

[(1, 28016316), (2, 14008158), (3, 9338772), (4, 7004079), (6, 4669386), (9, 3112924), (12, 2334693), (18, 1556462), (36, 778231), (71, 394596), (97, 288828), (113, 247932), (142, 197298), (194, 144414), (213, 131532), (226, 123966), (284, 98649), (291, 96276), (339, 82644), (388, 72207), (426, 65766), (452, 61983), (582, 48138), (639, 43844), (678, 41322), (852, 32883), (873, 32092), (1017, 27548), (1164, 24069), (1278, 21922), (1356, 20661), (1746, 16046), (2034, 13774), (2556, 10961), (3492, 8023), (4068, 6887)]